Currently reading the Malazan Book of the Fallen series, and have been for a while at this point. It does a lot of stuff, even for its page count, but I really like the way the authors write their world and their magic. It truly feels like a completely different world that on a pretty fundamental level works in a different way, something which I feel like few fantasy series accomplish. Wonderful stuff.
I don't keep track of stuff that's currently getting written, but I'm curious about Jeff Vandermeer's next book in the Southern Reach trilogy,