The model already exists, even a AWD, in Japan. Is called the Honda Vezel Hybrid. I am going to wait a year after release just to see if they finally bring it to the US (and at what price) the problem is, with the current low gas prices it might not pay itself for the extra cost of the engine (it actually never does until you count about 7 years of ownership, and that was with old high prices) so there might not be an incentive to import it as of now, but If the price goes back up it might be likely to see it. If I were honda execs I would be planning for it anyway, and just waiting for Gas to go up again
http://www.honda.co.jp/VEZEL/