The Carlton/Hawthorn deal means that Carlton can now trade for Houston, while still having a 2024 1st round pick. You'd think this was one of the main sticking points holding up the Houston deal, and by extension the Luko deal.
I think Carleton are making a bad mistake here. Port players never amount to much when traded. He isn't worth 2 first rounders and I wouldn't be surprised if he Huston has mediocre at best rest of his career.