source: Wrestling Observer Newsletter
The plan is for ECW to become something of a high level developmental territory, which was to be the original direction for the brand at first. Several Ohio Valley Wrestling talents (and presumably Deep South Wrestling talents as well) are expected to appear on ECW television soon. We don't have any specific names yet, but it should be known soon.
King Booker strained his back a while ago and was advised to rest up for a while. He worked through Survivor Series because he was in the main event, but was then given time off from in ring work. This lead to Big Show being asked to work the brief overseas Smackdown tour (in Portugal and Spain) for another week because they were lacking star power.
Tazz's WWE contract will be expiring soon and he's looking for a raise. Considering that he's on the now low-profile ECW, he might not get one. It is indeed possible that he'll be leaving the company when his contract ends if they can't come to an agreement. Also, Brad Armstrong called a match during last night's ECW broadcast, so if Tazz was to leave, they would have someone in place to replace him.