User blog comment:Argorrath/Black Ops III - Reveal Trailer released/@comment-173.58.100.7-20150428053332/@comment-1263839-20150428103336

I'd rather they just go ahead and make one ending Canon.

Leaving it vague basically means fuck all that happened in Black Ops II mattered to Black Ops III, and you can reach this cyber focused future based off events that happened in the endings if you fleshed it out a bit (Menendez's martyr lead the government to resort to experimental cybernetic soldiers to fend off the riots of the public, for example).