I went around the league team by team and made a guess as to who they might waive, if anyone. In a couple of cases I couldn't find anyone they would wave. Like Denver, who is short bodies big time. But anyway, here's my guess, and remember, its just a guess. I've also listed how much they're making this season and how many years are left on their contract.
Mavericks: Brendan Haywood - 5 years at 7.6 mil this year
Hawks: Joe Johnson - 5 years at 18 mil this year
Lakers: Luke Walton - 2 years at 5.6 mil this year
Spurs: Richard Jefferson - 3 years at 9.2 mil this year
Magic: Gilbert Arenas - 3 years at 19.2 mil this year, or, Hido Turkoglu - 3 years at 10 mil this year
Trailblazers: Brandon Roy: 4 years at 15 mil this year
Cav's: Baron Davis - 2 years at 14 mil this year
76'ers: Andres Nocioni - 2 years at 6.6 mil this year
Bucks: Stephen Jackson - 2 years at 9.2 mil this year, or, Drew Gooden - 4years at 6.2 mil this year
Suns: Josh Childress - 4 years at 6 mil this year
TWolves: Martell Webster - 2 years at 5.2 mil this year
Pistons: Charlie Villanueva - 3 years at 7.5 mil this year, or, Richard Hamilton - 2 years at 12.6 mil this year
Bobcats: Corey Maggette - 2 years at 10.2 mil this year
Rockets: Hasheem Thabeet - 3 years at 5.1 mil this year
Wizards: Rashard Lewis - 2 years at 22.1 mil this year
Nets: Travis Outlaw - 4 years at 7 mil this year
Some of these are iffy, like Thabeet. Houston is lacking size right now, and although Thabeet has been a bust so far, he's still better than nothing, so they might be reluctant to waive him. Travis Outlaw was a disapointment for the Nets, but they might still be willing to give him another year of look see. Webster was the most likely player on the Wolves, but with Kahn you never know.
Joe Johnson is another one I'm not sure of. They just signed him to a new contract, but in light of the new CBA, they might rethink the whole process. They'd probably try and trade him before waiving him. Its all just speculation..