This past year, the Cavs wore these various uniforms:

Full-time rotation

2008/2009 Alternates

via www.sportslogos.net

Over the last few years, they've worn the creamcicle Orange alts and the yellow throwbacks that have the similar checkered pattern up the side as the blue modern alts.

Ultimately, the Cavs have very few throwbacks to chose from going forward.  They have obviously the alternate colors of ones they've worn already (going with wine instead of gold) or they have the horizontal striped uniforms that haven't been used at all.

I doubt they want the 90's-2000 era black and blue garbage.

Does anyone know what their plans are for throwbacks/alts this year?