IMHO, I think it's better to get CZ , G lens instead. Might consider future Sony FF DSLR if packaged in the A3XX or A700 body size.
Such design are possible when talking about microelectronics, as long as future sensors are not bigger than the A-mount flange, anything is possible.
Current fad on Video/DSLR combo to me not good idea. As with many electronics products(non-dslr) have shown, multi-function has a down side, if spoilt all functions cannot use, Video and Still. I'm getting a dedicated video cam myself. For on the go, already have PSP Camera attached to PSP SLIM.
My 2cents.