I was convinced there'd be an X2B released by now, but I'm now going the other way. I think they're skipping X2B all together at this point, which would be a shame.
I suspect with the recent re-assignments and firing(s) at Cakewalk, there's some kind of shift happening. Whether it will benefit end-users in the long run remains to be seen, but it doesn't look good so far.
Frankly, I wish I had stayed at Sonar 8.5, as the only good thing to come out of my upgrading to X2 is that it lead me purchasing a Studio One Pro license. While Studio One lacks some major features, and has some quirks with keyboard shortcuts and mouse modifiers, it's otherwise been an overwhelmingly positive experience for me. I'm actually making more music with it than I had been in Sonar. If Cakewalk can get back on what I perceive to be the right track, I'll be right there with them, rooting them on, but as it stands, I'm not optimistic.