From the sound of it, namely
The grand finale is right around the corner, as the Seventh Umbral Era descends on Eorzea.
it seems like there'll be some live event after the 1st, most likely one where things go really nuts (meteors smashing the countryside, randomly killing people and mobs, garlean forces slaughtering anyone leaving the city, heck maybe even meteors smashing down in Ul'dah killing people). This stuff would be effectively unplayable beyond just a fun vision of what's happening, and when you see Ul'dah get blown up in the opening cinematic, you can think "I was *right there* when that meteor crashed!"

/wishfulthinking

Edit - Oh, and if there's no event, then no I won't play. No point.