It's unclear what game, or if both will be attending PSN when it does arrive. Character Aya Brea of the series is in the new The 3rd Birthday game.
The announcement came by way of telegraph twitter from Nomura-san, but again there was no mention if just Parasite Eve 1, 2 or both of them would make the transition to the PlayStation Store in the future. Are you a Parasite fan, videogamer?