According to KC Johnson's twitter
there are multiple possibilities for the Salmons trade.
Hakim Warrick and Joe Alexander is most likely with Elson and Thomas still being a
possibility as well.
The Bucks are
either going to send Hakim Warrick and Joe Alexander OR Kurt Thomas and
Francisco Elson to the Bulls. Probably the former.
This is a much better deal for the Bulls. Joe Alexander didn't have a great rookie year and is presently out with an injury, but he's still got at least a shadow of potential. Hakim Warrick would be a solid rotation player for the Bulls and fit perfectly if Tyrus Thomas were to be traded as a replacement.
Either way, talentwise, this new deal, if it occurs is vastly better than the original. We'll see if the Bulls have a follow up move for Tyrus.
Who knows. We'll find out in about 8 hours.
[edit original speculation erased after finding out the Bucks declined Alexander's 3rd year option, wow they must have been disappointed in his rookie year]