Deadpool director Miller has left and won't be directing the sequel.
"According to The Wrap, Miller wanted a more "stylized" sequel, while Reynolds wanted to stay true to the first film's "raunchy comedy style." Furthermore, Miller reportedly wanted to cast Bloodline and Friday Night Lights star Kyle Chandler as Cable in the sequel, which Reynolds didn't agree with. In the end, 20th Century Fox sided with Reynolds, prompting Miller to exit the project."
I have no idea who this Cable character is, but I doubt I'd be against Kyle Chandler playing anyone.
Meanwhile Doctor Strange has gotten pretty good reviews so far. It's disappoints me that it seems the villain is once again forgettable, even though the director commented on this issue. If you can't make a good villain out of Mads Mikkelsen, you should just forget about it. The visuals are being praised a lot.