i know what are you talking about but this thing is only possible and can make sense first-

1) we need a eren pov time to time to understand his actions

2) jean and connie needs to be yeagerists( because them being in alliance does not make sense to me) and levi should be dead fr.

3) reiner, pieck and annie having titan power does not makes sense because why them...(even falco)

actually it can makes sense if this has to do with something with ymir like eren needs to eat all of titans to free ymir and other things....(kinda lame but with good execution can be done way better)

4)we need a sort of talk between armin, mikasa and eren in paths before formation of alliance and we need to explore armin's character to flesh out his motives and not just "genocide bad" ( and also many other things which i didn't see at rumbling arc)

ok this is not a point but here- hange needs to die, no seriously there is no need of that bitch needs to die before rumbling

4)yeagerits side should be explored and isayama should at least try to explore some humane side of yeagerists and floch, not just making them disney cartoon villain.

floch has a potential to be a very well written character( a lot better i mean) imo. but that potential goes to waste sigh

5) we need some serious tension between alliance

6) no arruanie scenes ffs( actually fuck annie she does not even needs to come back)

7) isayama ffs needs to stop self inserting in armong and stop with his wanking

8) no need to introduce useless plot points because we only have very less chapters to plug all of them....

this is just me trying to make fumbling arc better. also after this anr is easy to pull out... and will make much much more sense imo and most of the people will be able to understand eren and won't just be confused on part of eren and won't say iT'S oOc fOr eRen tO kIlL hIs fReinDs

i have problems with previous arcs too but they are still fine and not as atrocious as fumbling arc...