I expect we'll see a 200X mini sub for 2015, so other than the Snake Armor He-Man VS Battle Armor King Hssss, we may not see much 200X in the main sub. At least that's my guess.
As for POP, I think we'll see Peekablue, Queen Angella and Perfuma released in Club Eternia. There is a rumored Catra/She-Ra variant 2-pack, but who knows if that will be in or out of sub.
I'd say sub up, but it really is up to you.