WWE is breaking into the 1000th episode. A new era is coming to fruition, so a new set, possibly a new title and a new agenda in place would be beneficial I think in advancing the company from the stale position it is in.
A make over, if you will. WWE is reportedly looking to bring in new talent, with their RAW show going 3 hours every week for the foreseeable future (which I bet won't last longer than the Guest Host gimmick they had going a few years back) they will need more of a roster and character development, so why not completely sweep the image a bit?
I say get rid of the Nickelback theme, usher in a new title design, go ahead and build a new set and build new character/personas and make that step into the next 1000 episodes an efficient and noteworthy transition.