This season kind of reminds me of the 5th seasons of EFC and Andromeda. No, it's not nearly as bad... yet. But, I don't think anyone can argue that this season of Fringe is a totally different show than what it was. Yes, Fringe changed every year, but never this drastically.
Again, this is not a knock on the quality as the first 2 episodes of season 5 were pretty good, but the 3rd was a bit blah. I just wonder how this season will be seen in hindsight.