I don't think so, seriously I'm for all for developpers to make the most of the hardware and that applies to consoles too. That would be very petty for third parties not to make the PS4 versions prettier considering that the PS4 is quite easy to developp for unlike the PS3.
Would MS be butthurt over that ? Well, that's their problem.
I hope you're right. Unlike previous generations, there doesn't appear to be a complexity gap between the two consoles anymore. It does appear to be a matter of adjusting the "performance level" of a game between the two.
It's reductive but I hope it's really just a matter of "turn this game up to level 9 for Durango and 10 for PS4".