.......I could be satisfied with such a quality, with little extra (multi-shot would be nice) to wish for.......
If Hasselblad will be using the the same sensor, they will most certainly offer a multishot version of it... Other than that, my wishes would extend to a back that would (additionally to multishot) feature the following:
-Four pixel binning for 25mp output ability...
-Interchangeable adapting plates so that one can shim it himself properly and use it on whatever camera he wishes to...
-Raw video recording to an external recorder...
That would make MY dream back.... a real "tool"!
That said, it's not only Hasselblad that can make such a back... Sinar is another player in the game that people don't mention and Leica seems to be working very hard as to catch up in pro video technology... OTOH, if a Sinarback with the above wish list is ever to be introduced, it most probably would have an exclusive to them sensor... Can't help to think that an upsized to (MF) FF Leica S-007 sensor would be of 60mp, which IMO would make it even more attractive...