Ambrose vs. Reigns is highly unlikely to happen.
Let's just remember they already totally screwed up the first ever match between the two at Survivor Series, a match totally devoid of any excitement, how the hell they managed that, i don't know.
Anyway, i agree, the RAW before last was great, everything felt like it mattered, storyline wise, and it actually had an exciting main event angle to get behind with Vince getting involved.
Unfortunately they seemed to totally forget what they did for that episode, as the last RAW went back to the same old crap, just made worse by having near meaningless awards to break up the segments.
Edit: Oh god, you did mean the Slammy Episode? Well, i don't know what to say. If you did enjoy it then all the more power to you, but god, it was terrible. They went back on Reigns' character development, had Ambrose essentially used as an accessory to get Reigns over, and had more meaningless matches. The hell's the point of doing Owens v Ziggler for the 3rd/4th time in a month or so?