Oh yes!

http://variety.com/2017/tv/news/true-detective-season-3-david-milch-nic-pizzolatto-1202017203/

Had hoped this was in the offing (see post from a few weeks ago).

https://www.themoviedb.org/tv/1406-deadwood/discuss/58bb5e77925141126a00ec9d

Going to double down on the wishful thinking...

Milch met with Ian McShane a few weeks back, ostensibly to catch up on Deadwood movie progress (or just because they're friends). However, as TD3 has was already under development at the time, perhaps the discussion was regarding a role for McShane. The timing is pretty interesting. I would absolutely love to see it!