Yeah, I hope you are right
XGtE massively improved the PHB, without introducing too much power creep (unlike TGtE, which also has a lot of interesting options, but clockwork soul sorcerer, twilight cleric etc just straight out invalidate all other subclasses)
DnD without the Xanathar options kind of feels empty imo
I really hope they add some other subclasses also. Hexblade obviously, Zealot Barbarian, Whispers Bard, Kensei Monk, Conquest Paladin, Gloomstalker, ...
Oh yeah, and while we are on Warlocks, Shadow of Moil was introduced in XGtE, without that spell, warlocks are a lot weaker too!
The racial feats you mentioned are cool, but imo only Dragon Fear and Elven Accuracy are truly "must picks" for their respective race. I would be ok, if they were not included (though it would make the game better if they were included)
