This is going to be a big issue for games coming out this year that are multiplatform. I would suspect AC4 is going to be similar, thats releasing on 6 platforms... how they hell they can do a proper job of making sure it works well on the new consoles... well i'm not convinced.
That's why i think Killzone and infamous early next year are going to set a high initial bar. It might be a year or two before some of the 3rd party games to catch up to this (they will need to drop a few platforms first).
Disappointing... what has been said about the XBoxOne version?