@Jaredan: Is there any possibility that an event will include romance?

From the few events and lore skits we've gotten, there's absolutely no speck of romantic attachment to be found. It's just the Champions kicking ass and taking names, for the most part.

Seriously, where's the love?

I recommend for a future event that you have a Lux/Ezreal story segment somewhere down the line where, at the very least, the two are sweet on one another (no need for full-blown "they get married" stuff, but enough that people go "Awwww").