Considering the 49,000 US$ price tag of the P1, there is a lot of room for competition.
The IQ3 100 is
$43,990 U.S.$.
yeah, I know, still pricey but I keep seeing the wrong price quoted. Basically it replaces the IQ380 as the top back at the same price point.
Since Hasselblad doesn't have a 80mp back to compare with the IQ3 80 difficult to compare price points. Also, Hasselblad started deep discounting of the CCD backs a few months ago ... I think they knew this was coming, maybe their plan is to move out of CCD and have just a 50 and 100mp Cmos backs.
As far as Pentax, we all know their challenge to design an entire new body and redesign a bunch of glass. We'll see if they have the desire and funds, and if they can come up with glass that would hold up to the sensor.
Maybe Pentax will pull a Sony, and design a mirrorless MF camera that can match up to any lens with an adaptor while they revamp their lens line. That would rock ...