I hope you are right, but there is no real way to know until it happens. The point is though by that time will tablet gpus out muscle these consoles? Graphics aren't everything but time is not on our side one bit. Its not our fault sony wanted to money grub all those last year 2013 ps3 titles, they could have EASILY moved resources over to ps4 games and we would have more now.
It depends. It's a balance act.
If they didn't release those on the PS3, would they have established the strong fanbase they have now? And if people saw how they supported last gen consoles up to the launch of the next, doesn't this instill confidence in their next-gen console as well?
Graphics will be fine. Once titles start being developed exclusively to next-gen, I'm sure the fidelity will rise. Look at The Order. It's a 2nd year product and it's already on the level of the best looking PC games out right now. I, for one, can't wait to see how Destiny 2 will be like since I've read somewhere that Destiny is being held back by last gen consoles.