Downloadable New Cpu bots?

playing with cpu even in expert modes gets boring when you already knew their mechanics.

back in 2000 i had a dreamcast SF alpha 3 saikyo dojo where you can download ‘master characters’ and its like fighting a different cpu for all the characters. their movesets are different than expert mode kinda like real person playing.

so starting from ps3 era till today, is there any fighting games that have downloadable or ‘unlocked’ cpu that i can spar with?