How many of you would...Pay $2995 for a 1d4 aps-h sensor in a 7d body?
Certainly not me. I wouldn't pay $1,600 for an APS-H sensor in a 7D body.
APS-H is dead...dead...dead. (Except possibly for some very limited niche uses, such as security cameras). Canon's executives have said as much in interviews. Canon never made lenses for the APS-H sensor. The difference in image quality is marginal at best and shrinking. I'd much rather have real improvements to the 7D than recycling a sensor that makes my APS-C lenses worthless.
Besides, why would anyone pay nearly $1,000 more for a 1.3 crop sensor than the 5D II is currently selling for? If I wanted to go to a larger sensor, I'd just buy a 5D II.
Pay $2995 for a 1d4 aps-h sensor in a 7d body?
No, I wouldn't. But, I would pay $4299 for an APS-C sensor in a 1D X body (with some noise improvements, 1D X-like AF but with an f/8 center point, 1D X metering and ergonomics).
Not $4,299 certainly. But I doubt Canon would bring one to market at that price point. Offer it at half that price and I'm in. (I'd accept some compromises to reach that price point, obviously.)