>>720499587
The modern internet has allowed games to have much longer lifespans than they would otherwise so it's easier to revive old franchises with remakes. DR2 is 13 years old so the teenagers and young adults who played it at release have aged out and we now have a new generation to resell games to. Development times for games have ballooned as well so everyone is playing it safe so that they don't spend most of a decade funding a flop. Stapling a new route that's basically a new game on top of a remake is an easier way to get it out of the door rather than an entirely original DR4