The maintenance tonight will partly focus on the Duty Finder: http://na.finalfantasyxiv.com/lodest...ea81a36b9d74ba

I can't find the exact post that said it, but I remember reading that they'll be splitting duty finder for the NA/EU servers into more groups (3?) so that should allow more instances (and hopefully less wait for us to get an instance before the actually party can begin to form!)