If Fallout 5 is made by Bethesda, I think they might go for a more Borderline-like gameplay. Fallout 4 seems to have had made a huge step in that direction. Maybe even they will turn it into something more like the new Grand Theft Auto or Red Dead Redemption and completely get rid off the RPG elements? Not necessarily a bad thing - I'd prefer a decent action game than a half-assed CoD/Minecraft with a role-playing game mascarade. Looking at F4, it's not that unlikely. Either that, or the negative voices from fans will scare them and they will try to make it more like F3. I hope there will be another Fallout game by Obsidian. Hell, they could even give it to id Software, so they would make a good Fallout shooter game.