Considering DDR value has sky rocketed after last season (with his best numbers of his life) and more aftrr the bubble (I mean compared to his value at the beginning of the season, as he was considered at the time a non factor anymore in wiew of the new basketball tendencies) I think that we can rigthly sell him for a lottery pick, if the lottery team is enticed to sel the pick by their peculiar situation (downloading bad contracts).
Of the mentioned teams :
GS
could trade for both DDR (a more reliable player than Wiggins, that's for sure) and Gay (they have their Iguodala trade exception)
Considering their situation for next year is probably an all in one (Curry, Thompson and Green are not that young anymore, Wiggins is a more than downloadable player and contract) they could sacrifice n° 2 draft pick if they are not in love with the names coming out of it...
so GS trade n° 2, Wiggins and use the Iguodala trade exception for DDR and Gay
Detroit
Considering Casey relationship with DDR they could see him as the ideal man to send them back to the play offs and they absolutely need to download, if possible, Griffin contract
so Detroit trade n° 7 plus Griffin and Doumbaya for DDR and Gay
NY
Considering their horrible record last years, they are quite in the same situation as Detroit excepy for the fact that their supposed new young hope has a game similar to DDR...but having to choose between a sure thing and a developing one they could decide to opt for the former
so NY trade n° 8 plus whoever they want (most of their contracts runs just for another year) for DDR or DDR and Gay
I don't see a possible Milwaukee package and in any case I don't see such package worth considering... (I wouldn't touch Bledsoe with a pole...)