Possibility for the Raptors... but for what exactly?
Only thing I can think of is the following:
Boston
Noguiera or Caboclo...So Boston gets a prospect at either C or SF.
Toronto
Lee...trades away Scola and Joseph (signed to 7M per 3 years), which allows their 1st rd pick (Wright) to backup Lowry.
Portland
Joseph and Scola...trades away Alexander and Frazier (current backup PG) in order to create roster space. This also allows them to inch ever closer to the salary cap floor, which I believe is 63M.
While this doesn't exactly constitute a trade proposal, any one that would be formulated out of these players -- or virtually any others coming out of the Raptors with the required salary output -- makes no sense for them.
If the Blazers completed my suggested Lee deal then bought him out, maybe they'd be interested in signing him for the rest of season.