One word.. Se7en.
[youtube]K7RLzLXDsAI[/youtube]
I know it's more of a long shot, and the odd's are in favor of Skip, or Tyler Black. (I doubt it'd be Taker because it doesn't feel like a Taker-isque promo.) However, I would LOVE for the Company to try using Dustin Rhodes in this failed WCW role. Just the promos alone gave him a TON of potential, and I believe the WWE has what WCW doesn't, to make it worth using/trying.
Seven could be a great (dark) character and another way to allow Goldust (who recently wrote a book) to get on-air activity.
Dammit, that was who I was going to guess at as an aternative to the other guesses. This character looked like it was going to be great in WCW, then they have to drop it because they've managed to present the character as a child abductor.
Personally I am praying that it is Sting, if a promo airs a week before with the guy dragging a baseball bat behind him then I am marking out!