Mass Effect 3.
Halo Reach.
Various patches and expansions for WoW and LoL.
Dragon Age 3.
Zelda II.
Final Fantasy II.
Eek. I'm thinking a lot of opinion went into that list. ME3 wasn't exactly received warmly by ME purists who were annoyed with many of the features/departures of ME2. The purists would have argued much the same way as the purists have on this forum, that the ME series was being dumbed down and rebuilt for those without brains... also, like the purists on this forum, they make up a very small minority of the actual consumers of ME3. Basically, the loudest complainers of ME2 are still complaining about ME3 (you can read many a review on Amazon for proof).
I never played Zelda I or II, so I can't comment on that. But I remember everybody loved Zelda I. There weren't many complainers to "change" a Zelda II... same with FFII.
The purists were upset with each subsequent release of Dragon Age, as they were with ME.
I personally haven't played a single Halo game after Halo 2. Is reach good? I'll never know. Halo was good before it wore itself out. You can only kill so many of those aliens before it becomes painfully repetitive.
Edit: Actually, come to think of it... the only trend I see is that the purists always inevitably lose out. The trend is that the games and their mechanics evolve. If shortly after Pearl Jam launched "Ten", the newness of which practically captivated the globe, they launched "Diez" but had all the same exact songs, I doubt it would have sold, especially amongst the people who already owned "Ten" (wait, they did... "Vs.").