Seems a sensible question to ask if you put together 2+2. On one hand no followup model has been announced, and on the other hand Pentax executives have time and again stated that the K-01 sold very poorly. That leaves the Q10 toy camera as the only mirrorless option offered by Pentax, hardly a presence worthy of its historic brand name. In any case, R.I.P Pentax K-01, we'll hardly miss you.
No longer the stuff of rumors, here's the E-M5 straight from the horse's mouth:
Pentax Press Release
An interchangeable-lens digital camera designed in collaboration with designer Marc Newson
PENTAX RICOH IMAGING COMPANY LTD. is delighted to announce the launch of the PENTAX K-01 interchangeable-lens digital camera in conjunction with the world’s thinnest interchangeable lens* - the smc PENTAX-DA 40mm F2.8 XS unifocal. This latest addition to the popular Pentax K series and the new lens were both designed in partnership with world renowned designer, Marc Newson. . . . read more
So, let's see what we've got so far: . . . read more