Alive but retired, last time I heard. I actually heard him play Rachmaninov 2 a few years ago and I found it very good, very profound and original, but nothing to scuff at.
Well ahead of his time, Glen Gould recorded Brahms 1 at a tempo much slower than anything heard in the hayday of the young Fleisher & company. Time has proven him right, with the mainstream now playing the work much closer to his reading than to that common in his day.
I suspect something similar will happen with Pogorelich's. Rachmaninov himself always complained that he played his own music too fast.
Needless to say, the fast parts were not slow. Great virtuoso and great musical mind that Pogorelich.