Both Rich himself and Bob have stated at various points that Rich was indeed being considered, so that is no surprise. But it's also clear that the consideration, sadly, never went beyond looking at some tapes that Rich put together and talking to Rich.
We do know there was never any audition taping like what Hamilton, Newton, O'Hurley, Steines, Lopez, et al. received.
Therefore, either what they saw on the tapes blew them away enough to seriously consider Rich, or (sadly, the more likely of the two scenarios) they have decided to keep Rich where he is and look outside for the new host.
Don't get me wrong. I wanted Rich to become the new host, too (kidding about Madonna and Dr. McCoy and fetish footwear aside). But I would genuinely be floored at this point if he is still in the running - much less got the job.
Plus, I will admit that everything I've personally heard (including the brief exchange at the 1/30 taping) gave me the impression that while Rich would have enjoyed hosting the new show, the idea of Rich taking over was more Bob's idea than Rich's, and Rich already feels like he has his dream job (understandable, considering that Johnny was HIS hero).
So, I look at it this way: I would love to see that happen, but for a while now, I've viewed Rich getting the job the same way I would picking up my phone to hear "Hey, it's Madonna. Wanna get together?".