Pro Evo came out in September, if it's in the April collection, that's seven months. After eight months of the Vita, the first month of PS+ included Gravity Rush, Uncharted and Mutant Blobs Attack, I would hope if Sony does intend to match their other platforms in IGC quality, we'll see them earlier than November.
Still the point stands, these are the games you would have got from PS+ for PS3 and Vita at a similar point relative to their releases:
None.
PS4: 5 brand new games.