Persona 2
Admittedly, a Persona 2 remake would be the hardest title on this list to pull off simply due to how different the early games in the Persona series are to modern gems like Persona 4 and 5. This being said, the fact that the series has reached widespread popularity may be enough incentive for Atlus to produce remakes of the games that started it all.
A Persona 2 remake would require a complete reworking of the title’s gameplay and removal of outdated mechanics like random encounters. Something akin to the experience of more recent games in the franchise could do wonders, for instance. Though it may be hard to implement, incorporating a social link feature will help Persona 2’s characters stand out a bit more, too. It’s all worth it, given how excellent the story is and how synonymous the Persona franchise is now with quality JRPGs.