Could the World of Warcraft's Alliance and Horde fare well against the characters of the Starcraft and the Diablo universes? (I'm not sure where exactly to ask this to be honest)
If for example, the forces of either universe, both the heroes and their worst enemies, directly attacked Azeroth, would they be able to stand against them in a full-scale conflict of epic proportions? Do you believe that any cross-over, beyond the very limited interactions in Heroes of the Storm, between these three universes would end well, since the latter games are considerably less popular than World of Warcraft?