I'm probably the only one who doesn't think that Rogue will be ported to current gen consoles. Ubisoft is the only top tier company who hasn't ported any previous gen game to current gen and I don't see it starting now. If they were ever going to port any previous gen game over to current gen, it would have been Far Cry 3 and since that didn't happen, I don't see it happening with Rogue.
I can understand those who want to play Unity and that it would be tough to then play Rogue but even if by some chance Rogue is ported to current gen, the game itself will be the same but with upgraded graphics and visuals. Anyone who owns an Xbox 360, PS3 or plays games on PC should just play Rogue first and then Unity.
2014 has been the year of the upgraded/remastered/definitive edition ports and quite honestly, the only one that's worth buying whatsoever is Halo: MCC simply because you're getting four games plus more for the price of one. Sure, for those who missed out on The Last of Us on PS3, buying and playing it on PS4 makes sense but Ellie's AI and CPU AI in regards to detecting her still sucked and didn't look any better in my opinion.
Personally, the ports and cross-gen games need to end along with 2014. Starting with 2015, any game that's on Xbox One and PS4 shouldn't be cross-gen or an upgraded port. Simply, I want current gen only games because what's the point in owning an Xbox One or PS4 is if all im getting are cross-gen or updated ports? UGH.
I think that Rogue finishes off the AC franchise on past gen consoles. It's all about current gen from here on out and updating Rogue to be on current gen consoles will be nothing more than a waste of everyone's time and money.