Man that would suck for him, go to another team that has no shot to win their division any time soon and that is in rebuild mode. But hey, if they offer the most then so be it.
Thing is, Kamara is 29 and his contract screams one year rental if he is traded, and all the contenders aren't in the market for RBs. The reason I say Denver as the landing spot is Payton's openly talked about how he doesn't have a "joker" RB in his offense in Denver and the way Payton has gone after "his guys" from the Saints, they're probably giving the Saints the best, possibly only offer for Kamara if they could.
However Denver's cap situation this year is dire and I think their attitude is to do the best with what they've got this year.