Probably the only question more important than what games are included.
They haven't revealed the full lists yet.
With this being older fare, looks like Castlevania Bloodlines has a chance.
Probably the best guess since SOTN and Rondo are already in a collection on PS4. Could see it having bloodlines, rebirth, the 68000 version and another non-iga game though (maybe Rondo even though That kills my precious line of thinking).