Its highly likely that we won't be dealing with remasters next-gen. Thanks to the change we went through going from exotic CPU design of last gen console to typical x86-64 you get in almost any PC that we have now, as long as they follow what they have been saying we shouldn't have any real issues playing PS4 games on a PS5.
1. Tekken 5 Dark Resurrection with TTT2's online modes & netcode.
2. Urban Reigns + online
3. Bushido Blade 1 + online
Vice City- though I would want like modern GTA 5 graphics version of it.