Yeah, I just read that.
It's also on Mike's official website on his forum:
On one hand, as a big DT fan since 1991, I'm shocked. I never thought I would ever read such a thing.
On the other hand, the last two DT albums were terrible IMHO, and Mike's "leadership" has been a factor (although not the only factor) in such poor outings, so I think a break is certainly in need.
Although I can't imagine paying good money to go to see DT if Mike isn't behind the drum kit.