Ace Combat doesn't have any licensing issues. They rereleased AC5 and AC6 as preorder bonuses for AC7 just a couple of years ago. The stated reason the series p

Ace Combat doesn't have any licensing issues. They rereleased AC5 and AC6 as preorder bonuses for AC7 just a couple of years ago. The stated reason the series producer has for not rereleasing them is that they wouldn't want to sell the games as-is, and they don't have enough resources to remaster them.