Well, one GTA community member thought so to such an extent that they're currently busy re-creating what we've seen of the map so far in GTA 5, as a mod that Rockstar will hopefully be cool with.

We've been waiting so long for GTA 6 that we've now been given the next best thing to a GTA 4 remake, all thanks to this enormous GTA 5 mod that's ... police and ambient traffic are faithful ...