I think it would be a great trade for Denver if we can get a long term deal sewn up w/ Revis. I love Doom and all but his best value is as a OLB in a 3-4 type defense. He's a great pass rusher, but can get overwhelved in run defense. He recently sat out a season with a torn pectoral and his production has been ok-good since then but he's getting older.
Obviously w/ Revis coming off a torn ACL, there is some risk there but I think the reward outweighs the concern. As Champ has showed us, long term value is always rewarded with secondary players as they have some of the best longevity in the league. Portis has been done for about 5 yrs now and Champ is still having all-pro seasons.