People seem to think it's just graphics that are possible on PS4, but Capcom have already come out and said that multiple gameplay features are only possible now that they're no longer limited to 3DS. Seamless zone transitions, better monster AI, and the environmental destruction, to name a few -- you can't just downgrade the graphics to port MHW to weaker machines.
But none is talking about porting this to the 3DS. Hell, the other threads are mostly about another game in the series, that is currently in production, not being localized. That being made clear, lets focus on MHW.
Do you guys still want arenas for legendary fights, or would like there to have interactions with the environment or other monsters? And while calling for helps sounds like a good idea, I hope some areas retain the epic feeling that comes from difficulty, such as this kind of fights.