So...
After a rather brutally one on one match between Reigns & Styles, the Usos and Anderson/Gallows interrupt the main event. Make the Usos run out first. The Club actually takes control and decimates the Usos through tables or something while Reigns is in the ring. The Club climbs up onto the apron, one on each side except the commentators to have Reigns almost surrounded when suddenly... "Sierra, Hotel, India, Echo, Lima, Delta, Shield..." And then Rollins and a banged Ambrose make their crowd entrance. A brawl breaks out where the fresh Rollins dominates (everyone else has been in a match that night or have been in the middle of a match). Rollins eventually hits a Phoenix splash on Styles. As he goes to pull Reigns on top for the pin, the arena goes dark and the red lights start to flash as Finn Balor makes his debut, demon & all, with the contrast being Rollins' facial reactions to it all (those are always top notch). Balor and Rollins end up face-to-face to in the ring but with Ambrose already banged up from his asylum match, he's out of it. Anderson/Gallows get back in the ring behind Rollins. The three beat him down before Balor eventually hits the Coup de Grace on Reigns. The Club then all helps Styles hit a Styles Clash and AJ pins Reigns for the title and the night ends with them celebrating as The Shield and the Usos are laying all over the place in carnage.
On RAW the next night, the Shield & Usos begin the night by entering together through the crowd. Rollins cuts a promo about how the Shield was a brotherhood, the best, and that sitting at home and listening to the commentators fawn over the Club made him sick. Throw in some shoot references to the Club in Japan and the chants for the Club when the Shield was dominating where the big boys play. Say that while the Shield may have been fractured, it wasn't going to stand by as the Club tries to make WWE their play ground. Have Reigns demand a re-match, finally prompting the Club to do a group entrance and speak from the stage. Have AJ talk about how he wanted to beat Reigns fair & square but the Usos made sure that wouldn't happen. Have AJ talk about Reigns not deserving a re-match, but that Rollins or Ambrose might (note: Ambrose has to win his match vs Jericho) as if he's trying to get the Shield to turn on each other. Have Steph & Shane come out and say that AJ has a point but that Reigns clearly deserves a re-match at MITB. However, given all of the interference lately, the members of the Club, Shield, and Usos will be banned from ringside and if any interfere, their side will forfeit the title to the other. Also have Anderson/Gallows vs Rollins/Ambrose at MITB. Have Balor compete in the MITB match. Who cares what the Usos do. At MITB, Rollins/Ambrose win but Reigns loses cleanly (this is the only way to truly save him as a main eventer re: being over).
RAW after, Reigns again demands a re-match. However, AJ points out that Rollins & Ambrose seem to have a better argument for it given they won their match and Rollins has never got his re-match. Shane & Steph agree, making a three-way match at Battleground for a title shot at Summerslam. Have Rollins go over in a dirty fashion (chair?), playing up the Shield potentially fracturing again. Constant will they or won't they break up type crap. Separately, make Balor/Ambrose at Summerslam for a title shot at night of Champions. Also Reigns/Gallows so Reigns can pick up a win. Have Balor win, teasing a Balor/AJ match for an hour or two until Rollins goes over AJ to reclaim his championship.
Night of Champions is then Rollins/Balor. Reigns/Ambrose vs AJ/Anderson is the undercard. The Shield go over in both. Night after on RAW, the Shield/Usos vs The Club just blows up into a big brawl. Shane/Steph decide to make the main event of Hell in a Cell as The Shield vs Balor/Anderson/AJ in slightly expanded Hell in a Cell (more room around the outside of the ring than normal). AJ eats the pin in a brutal match.
Having lost two PPVs in a row, the Club just loses it and starts attacking everyone & everything on the following RAW. The Shield confront them. Steph & Shane decide to make one more match at Survivor Series: if the Club lose a third straight PPV, they will have run out of chances. Main event is a traditional Survivor Series match: The Shield/Usos vs The Club. The Club are given the option of only going with 4v5 or finding a partner for 5v5. At Survivor Series, have the Club state they aren't the only ones from Japan and debut Nakamura. In the match, have it come down to AJ/Balor/Nakamura vs The Shield. Have AJ make a big mistake that gets Balor eliminated and AJ quickly after. Nakamura ends up overwhelmed 1v3. The Shield go over. Make sure Rollins gets all five pins or submissions in the match.
Next night on RAW, The Club comes out as a group including Nakamura. They immediately turn on AJ (after eating the pin at HIAC and screwing up at SS). Turn the Club's attention toward the IC (Nakamura), US (Balor), and Tag Titles (Anderson/Gallows). Later in the night after the turning on each other, have the Shield come out to celebrate their triumph but only have Rollins talk. Let him be heel Rollins that has the championship and made all the eliminations himself. Have Reigns and Ambrose turn on Rollins this time with a chair (opposite of Rollins turning on them last time). Build to Rollins/Ambrose at the Royal Rumble. Have Rollins go over dirty. In the Royal Rumble match, have Reigns be relatively dominating 1st entrant (actually in the match, not the back, this time) only for Ambrose to be a surprise 30th entrant. Have Ambrose and Reigns fight for a while as the last two in the ring. Eventually have Rollins come out and take them both out with a chair. Have the referees make ten counts on both Ambrose & Reigns, who aren't moving (seriously let Rollins have fun against them). Eventually they are both taken away with the match being announced as a no contest as the Rumble going off the air and the announcers confused over who will head to Wrestlemania.
Next night on RAW, Rollins cuts a promo and how everyone wants to know who he will face at Wrestlemania and how he doesn't think either Ambrose or Reigns deserves to. Both guys come out separately to retort that, talking about how they deserve to. Steph & Shane come out to say that Ambrose & Reigns will face off at Fastlane to find out. At Fastlane, have Rollins interfere when the referee is down and again end it in a no contest. Rollins comes out to celebrate on the following RAW again (basically the same promo as last time) but this time have Steph & Shane decide to just let both Ambrose & Reigns face Rollins at Wrestlemania in a triple threat street fight.
Separately, slow build AJ wanting his revenge against Balor (who will have taken the leadership role in the Club) to the point that Wrestlemania is AJ Styles vs Finn Balor for the US championship with Finn's reign as US champion used to elevate it. Plus, Nakamura vs Sami Zayn for the IC title (one year later after their NXT match) and Anderson/Gallows vs New Day for the Tag Team titles.
BTW, the whole time the Shield & the Club play tweeners. So, Rollins/Anderson/Balor/Gallows tend toward heel actions and Styles/Reigns/Ambrose/Usos tend toward face actions. Set them up for the face/heel division when they divide.
Wrestlemania card ends up including:
Dean Ambrose (wins) vs Roman Reigns vs Seth Rollins (WWE Championship)
Finn Balor (wins) vs AJ Styles (US Championship)
Shinsuke Nakamura vs Sami Zayn (wins) (IC Championship)
Anderson/Gallows (wins) vs the New Day (Tag Team Titles)
John Cena vs Undertaker
Kevin Owens vs Triple H (set-up from Owens friction with Steph & Shane all year)
I need better things to do on Sundays.