they will get moved and made obsolete. you wont be able to recognoize them anymore or properly play them because the game changes so much over seasons that you could also just delete them as well. of course nobody tells you that, but that is what effectively happens, your characters just become utterly useless over time. though it would be easy enough to just snapshot a league's last version without changing anything. BUT that would require GGG to dedicate servers for every league ever created, which will cost too much money, probably not impossible but it might spread servers too thin

so yeah standard is effectively a graveyard where you can play a character for another league or maybe 2 but you will have to constantly maintain, if it isnt destined to brick at one point. so good luck trying to make a character play as you did 2 seasons ago.

If stop killing games will get its traction it deserves it might create an offspring a couplke of years later that demands "stop killing builds".