Since Tomium didn't said anything relevant,i will just answer this for Funcom by simply saying: "it won't happen"
Why you wonder?
Because the game itself would need a full rework,ps4 is way ahead of a game like AoC because the game would "limit" the ps4 potential like it already does on PC. bla bla bla
You get the point peeps,so no big staff to this kind of work or money,so i don't think that even Kickstarter would help....sure Funcom could hire more people with Kickstarter money but from my experience worst thing ever is to mess with another programmer code....why?is a nightmare!(a reason why i believe Joel avoids some old stuff like "sieges",etc...)So that would mean a start from scratch...it would not work,game "core" would be changed with that and so on.
cheers