Well seeing where this thread is going, ha, im guessing the Blades would be neutral then, huh?
... I think that a Blade would see a Imperial victory as a better opportunity against the Thalmor, you know all that Empire vs Summerset instead of an easier target that Skyrim on its own would present.
Thomas: Captain! We better take evasive action! Yuri: No! We stand our ground! I want him to watch up close and personal as his dying effort end in vain!