Yeah. I'll probably watch the first 5 or so BW eps just to see what Iris and the other guy is like, but I'm probably not going to watch the arc regularly.
I've watched all 650+ episodes so far from the last 13 years, and I do feel its time for a break.
I doubt I'll watch BW past the initial 5 eps, because no matter how good a saga is, its events feel unimportant when it ends. Just look at the way most of the good stuff that happened in DP has been forgotten already by most fans.
If 4 years from now I hear that BW is the last arc of Ash's story, then I'll go back and catch up on all the eps I missed. However if we just go to Gen 6 beyond that...then meh, there's no reason to bother.
I'd rather end with DP. My only regret is not seeing all of Ash's older pokemon used.