Well first of all, thanks for showing so much interest! Didn't expect a response like this a day after it goes up!

Mettaton was the first thing I imagined that sparked this whole idea. I just imagined EX in Toriel's robe and was like "This could go somewhere..."

I'm trying to go by the same pacing Storyshift is with how much of a scene is uploaded. They seem to have a solid idea of how much is enough to tackle at a time. Goals? Well, I plan on going the Neutral into Pacifist route (as in how a first playthrough of the game would normally go), then the Genocide route, and then I would show off all the Neutral endings. I don't plan on doing more than one loop (for the time being, but I am most likely not going to change my stance on this).

That's one of my favorite aspects of Storyshift, tbh. For example, Mettaton...well, actually, I'l save that for a later date. We've just started after all.

Secondary Storyshift will partially follow the duo mold...partially. For example, yes, Napstablook will be the King, but for two major reasons. One, the relationship already established between Blook and Metta as close family, and two, the fact that, being a ghost, he can't die. You'll still have to FIGHT him, but eventually, he'll admit that you aren't actually hurting him and just stop fighting out of guilt. Even in Neutral endings, it'll be implied that Blook just "runs away somewhere" instead of dying like Asgore does. However, other roles won't follow the duo role as much, as we'll see sooner or later.

Boy, this is gonna be a doozy. Thanks again for showing your interest/support in this! It's really motivating!