Oh, definitely. I expect, or at least hope, that it'll be one of those situations where I'm aware of it at first, but after ten or fifteen minutes, I'm so engrossed by the movie itself that I forget about it. Ultimately, that may be what happens. Peter Jackson, and others, choose a few select movies that they know are gonna kick ass, and offer them in 48 fps as well as 24. People watch the movies in 48 to see what the fuss is all about, and enjoy the movies anyway. People slowly become acclimated to 48 fps, the world changes just a bit, and life goes on.
I don't blame filmmakers for wanting to continue to push. Sound was considered a novelty. Color was considered a novelty. This is kinda big, but nowhere near the scale of those two, which eventually became the norm. People can get used to anything. Wait... many or perhaps most people can get used to anything. I never thought mp3's would become as ubiquitous as they are, for example.