Well, there seems to be a few things that will improve performance coming in the near future. In fact, new SDK's, added GPU usage and so forth should help out in that area, and thats without DX12 or the cloud. "Wait and see" isnt warranted when it comes to the X1. This isnt Sony were talking about. Ive said this before but Im not sure where all this distrust for Microsoft is coming from but its unfounded. They've been incredibly transparent. They've been upfront about their plans and they've been pretty consistent with the updates--not to mention bringing more innovation towards the industry than Sony and Nintendo combined. As it stands right now, Microsoft is the biggest threat towards traditional consoles this generation. And truth of it, the X1 is the brightest beacon of real change in traditional consoles we've seen in decades.
Hence the reason why so many jump on every bit of news released about the X1--why so many feel the need to take the "wait and see" approach. Its not because Microsoft has a history of not delivering on their promises, but because so much of what they are bringing to the table this generation not only will change consoles forever, but has already done so. And the train is JUST leaving the station.... Think on it.