Raptors would be gaining improved depth with a backup PG
Warriors would be gaining a veteran scorer who plays off-ball extremely well, which would work fantastically with Steph & CP3 as the PG's. Additionally, they get a backup SG who's had a few miles under his legs and an experienced forward to have on the bench.
Detroit wouldn't really have an immediate improvement but with the addition of Wiggins, Moses & Kuminga they get added young talent. They could likely run a starting 5 of this
C: Duren PF: Thompson SF: Wiggins SG: Moses PG: Cade