Class Mastery effects are tied to our original Class, but with Subclassing, our original Class is far less important. In fact, more than half of our Class skills can come from Classes other than our original Class.
I've wanted to play around with some Class Mastery effects that aren't for my original Class, and Subclassing gives me the impression that this may be the direction the game is taking. Instead of having to create a character of the respective Class for each Class Mastery effect I'd want to use, I'd rather have the option to choose which Class Mastery effect I use on a single character, so that I could use Warden's charm in PvP or Arcanist's Banner Bearer Crux generation in PvE, without needing several separate characters for those.
PC/NA — Lone Werewolf, the EP Templar Khajiit Werewolf
Werewolf Should be Allowed to Sneak
Please give us Werewolf
Skill Styles (for customizing our fur color),
Grimoires/Scribing skills (to fill in the holes in our builds), and
Companions (to transform with).