Barebones isn't available in BO2 but I guess they could include an update for it. BO1 was great for Barebones because it had three different variations of it. I'm hoping it does get included, along with War.
Barebones would be good if it was included and they left all the Perks and stuff still in it. I never understood why they took the Perks off from it in Black Ops 1. The perks make half of this game when you can customize your character.