Possibly, sure. We won't know until we know. I lean towards Iron Man solely because of the images, but that can totally be used for something different, yes. Eventually, we also have to look at the availability of space for such a ride and see if its feasible in MSHI, Hogsmead/Diagon, etc. Is there space for that? How much will be needed to make a big enough track + queue + merch + mechanical? How much of backstage can be absorbed by a new attraction, but still leave room for backstage operations?
Lots of questions, sure. I just saw a suit with an arc reactor and first thought was Iron Man. But yes, could be used for something else. But thats the fun of speculating!