soooo now that we're in the retcon timeline, the whole lil cal stuff didn't happen right? cause now there isn't evnen ARquius sprite, since vriska stopped Equius' head from getting in there, gamzee probably didn't leave (though we don't know that for sure) and generally things are too different

It still happened. Vriska didn’t stop Equ from being prototypes, in this timeline she’s the one that threw him in there.