They should bring in Juvy because a Juvy/Siaki Psuedo-Rock showdown would be gold Jerry - GOLD! I became an eternal fan of 'The Juice' when he was doing that schtick. Seriously, if the WWE brought him in, that stuff would get over HUGE. Whatever personal issues he has that's kept him out to this point can't be any worse than those of other useless meatsacks currently on the roster.
And hearing Mike Tenay drain his brain of every piece of useless information during a lucha match would be a much better memory lane jaunt than the Bataan Death Marches that TNA has been leading its viewers down. (I haven't actually seen any of the shows - WAY too poor.)
Most people are like Slinkys; they're utterly worthless except for the giddy joy they give you when you see one tumble down a flight of stairs
According to pwinsider, Mick Foley was close to sign a deal with TNA. He would have wrestled a couple of matches for them, which seems to indicate that he'll likely wrestle again in WWE and not just promote his book (linky: http://www.pwinsider.