I hope that Pentax and even the likes of Nikon continue to survive. We are seeing the next wave of photo company consolidation. The last was in the 1980's with the likes of Miranda, Soligar, Kiron, Vivitar, and such go by the wayside.
Today we have seen Contax, Yashica (BTW of Contax), Konica-Minolta, and Bronica go by the wayside in the last year or so.