There is a very interesting rumor about a new, state of the art MFD sensor that Hasselblad is working on with Sony. sonyalpharumors. This site has proven to have good sources in recent years, but it's still at the rumor stage.
A "select" group of posters here in the Medium format Digital Forum has been obsessed and incessant about the first products of the collaboration between Hasselblad and Sony, the Lunar and the Stellar, that are irrelevant to medium format digital. What they have completely missed (and probably really don't care about) is that the collaboration between Hasselblad and Sony extends to Hasselblad's medium format products. It just so happens that the leading designer of digital camera sensors in the world is Sony, and no company is better positioned to develop a revolutionary sensor for an H5 or some altogether new body.
Let's hope this is even somewhat true. Medium format digital has been at a plateau for quite some time.