You mean the same number of pixels. More to resolution than pixel resolution. DoF is no problem. Besides, I have not seen a press release of a new camera for Jan 2012, perhaps you can give us the link?
If I were to buy a new camera the price of a small car now, I'd be interested in listening to rumors of imminent releases, even if there is no official "link". Would you not? As an informal adviser I believe it is my duty to provide such information because they are extremely likely to be accurate. Especially when the budget of the OP points to the obvious fact that MF is not the right answer for him all things considered.
Resolution is for sure impacted by more than pixel count:
- accuracy of focus - nothing beats live view here,
- lenses quality over the full frame - a great image in the center with weak corners is poor landscape style knowing that all the stitchers around will come up with perfectly uniform images down to the very corners,
- sensor characteristics - although it is a clear heresy from a signal processing standpoint, many landscape photographers seem to prefer AA filter less sensors. True or not, like it or not, the rumors I am refering to point to an AA filter less DSLR sensor,
- lack of cropping/sufficient reach - this means having the right focal lenght at hand, high quality zooms available for DSLRs help a lot here in landcape situations where lightness and compactness are key. Tele lenses of high quality that remain reasonnably light also open up great possibilities for distant landscape, not an option for MF because of the weight,
- suitable sharpening, ideally tuned to the local weaknesses of the lens - only DxO can do this today at a reasonnable cost, and is only available for DSLRs,
- working state of the camera - a back up of suitable performance is mandatory for some landscape endeavours with once in a lifetime opportunities. Oops... that means a second car if you go the MF route as well as a sherpa to carry the gear.
Like it or not, most of these things point to a superior image quality with the DSLR.