The camera world is changing very quickly, of that there is no doubt.
Stuck In Customs | HDR Photography, Travel Photography and Camera Reviews
I've been in a quandary on where to go with my equipment, with lots of Pentax equipment and a few Sony Items. After reading Trey Ratcliff's article, above, i find it says much better in words, what i've been thinking about.
Trey's viewpoint is decidedly of one who travels a lot and does primarily landscaping work. But there are a lot of photographers who fall into that category. He is not bashful in describing Nikon and Sony advantages and disadvantages.
While reading this fascinating article, in many instances one could replace the word Sony with Pentax and much still applies. His recommendations for future Sony action include water resistance for example. Pentax already has that in spades. He also recommends some faster zooms for Sony - Pentax already has that. One of the big advantages i see for Pentax is a better suite of lenses available over that available for Sony e-mount. On the other hand, Sony is doing more innovative things at the moment than Pentax. Pentax has IBIS and tends to have smaller lens sizes in either or both weight and volume.
If we compare the Japanese camera makers to a deck of cards, then Sony is probably closest to the Joker card, flexible in their approach and capable of making winning hands out of a diverse hand.