Good question. He'd be in the unrealistic pipedream category for me as I think Toronto is hoping to build around their young nucleus (hence the Trent trade). Siakam is three years younger, is better and more versatile defensively, and has at least the illusion of untapped upside or consistency. Toronto obtaining CJ would be like them trying to build a worse version of the Blazers in the East. I'd love a CJ-Siakam swap, and I'm not sure Toronto is necessarily in love Siakam as a player or personality, but I don't think CJ is the type of player they'd be interested in should they choose to find a replacement.