The problem though is that it makes the newer subs with bonus spells stronger than the earlier ones. For example, shadow sorcerer is a good subclass, but nowhere on the level of Clockwork Soul. Assuming you can still use Xanathar or Tasha with this revised PHB*, the subs with bonus spells will still be stronger than what we've seen so far. Hunter and Draconic are still lower tier compared to Gloomstalker or Aberrant mind.For both Ranger and sorcerer, the extra spells were a correction from what they had initially presented in the PHB. Sorcerers were short spells, and this was a way to fix it withioout claiming errata. The revision of the classes will count as a "reset".
I expect that the subclasses for Sorcerer will not have a list of bonus spells; that's already rolled into the revision of the class.
It could still happen in a Ranger subclass, but I would not expect it to be standard -- an extra magical subclass might have access to thematic spells, though.
* Insert 30 pages of debate about backwards compatibility here.