i don't know which chapter it was but it showed all the future worlds he goes into (aka his uniforms/ stories clothes he wears and wears those in the different worlds) and i think this is the last one, i just forgot which chapter that is..
Spoiler: . . . On chapter 135 and he just got the turn back in time clock, so he should be going to the real world right after wrapping up this arc. Probs in the next 10 chapters or so
chap 102 rn does he ever get back to his real real world because this is starting to feel like back to the future 2 & 3