I'd rather have new enemies and bosses to be honest but that's just me lol
Also I think when Ronin said antagonist he meant one main big bad guy , rather than just regular bosses like your list
Although I may be wrong on that
My list included both, though. I just didn't feel like leaving the boss without minions.
There's another name for the evil Santa Claus: KRAMPUS!!!!
Isn't he just assistant, though?