Not saying this is remotely realistic but this works on espn trade machine:
Mavs get: Love + Drummond
Cavs get: Hardaway + Johnson + Powell + Green
Just trying to replenish our Aussie stock that took a recent hit
So Drummond, Hardaway, and Johnson are free agents after this season while Green is under contract next year for $3 million. He's a 19yo shooting guard averaging 9 minutes a game who would be buried behind Sexton, Porter, and maybe even Dotson.
So going into next year we would be out from under Love's contract, saving $60 million over the next two years while the Mavericks would save $22 million on Johnson over two years and $2 million on Green. They would take on a net of $36 million over the next two years but would have Love instead of Green.
The only reason they would make this deal is if they think it puts them in position to go to the Finals this season. A lineup of Drummond at C, Porzingas and Love at PF, Doncic and Richardson at guard, and I have no idea who at SF but maybe they trade us a draft pick for Cedi would be pretty formidable.
I don't know if they would be willing to sacrifice the future for the present and I don't know about the viability of having Porzingas and Love on the same team since they play the same position. They're both making $30 million the next two seasons. I think they would prefer to work something out where they get Drummond but not Love and keep Hardaway, giving them a starting lineup of Drummond, Porzingas, Hardaway, Doncic, and Richardson.
But I don't see why the Cavs would trade Drummond if they don't get anything of value beyond this season. If they could dump Love's contract it would be worth it but I don't see the Mavs taking it on even if they can get Drummond and get out of Powell's deal in the process.