I'm still figuring out the details on all the "main" characters. Megaman and zero from megaman are easy since their robots. They can walk through all the story arcs I have in mind.

The problem is with all the human characters that will age over time.

I have one arc that starts at 2537

The second arc starts arc at 2546

The last arc starts at 2549

While Reploids don't age, I feel everyone else will have trouble age up too much with the passing of time.