The PLA Pokémon were actually given abilities a while back(I think when HOME compatibility was added, but the info might have been datamined as early as from PLA, I don't remember). These abilities can be seen on Serebii's PLA Pokédex.I wonder what abilities they will be given to give them viability. Most likely Cursed Body or Pressure for Zoroark.
There were a few adjustments now in SV, like Hisuian Samurott now having Sharpness instead of Shell Armor as its HA, but they mostly stay the same.