I take the vision in both fights to be potential future outcomes, not set in stone futures.
Sorry, but everyone knows the next expansion is Return of the Fall of the Wrath of the Lich King. I'm afraid Blizzard has run out of ideas. We finally have the "WoW killer"... WoW.
Hmm true but now for the critical question is which Argus? Also I guess whether the Legion's Vanguard is still or was even situated on Argus after/during the 30 or so years to our universe's time period because Past Alternate Universe. And when you say incursion portal do you mean the Dark Portal specifically or random demon portals?