Have they even decided if there IS going to be a Moran character? If so, they've known for quite a while that there's going to be a Series 3, so it's possible, I guess.
That forum was where I "hung out" until I found you guys. It's primarily just a place where people can post their theories and thoughts on Fall, with very little back and forth as you'll note. Plus, it's dedicated to THIS Sherlock, not as many hard-core experts on Everything Sherlock as here. It's my guess that after the hullabaloo dies down, it'll pretty much wither away.