There are also other problems while making a P2 remake.
1. P2 relies pretty heavily on you knowing the events of P1. So before they can even get to P2 they would need to completely remake the first game.
2. Unlike P3 and P4 there aren't any assets to reuse for a remake. P2 has next to it's dungeons and shops like a dozen small areas that would have to be remade in 3D environments. The entire battle and fusion system would also have to be redone just to make it a lot less grindy and in line with the modern games.
Honestly direct ports/remaster with some quality of life changes (less cards needed for fusions for example) would seem like a safer bet for Atlus to make (cost a lot less money and development time).
Though looking at how they treated the recent P3P port my expectations for the quality of future ports is pretty low.
