One of my pet peeves with Aion is, thankfully, going away! Right now all Legion names are limited to 10 characters, which is highly aggravating. Now, Ayase is confirming that this will not be a problem in the future:
Consider this reply your confirmation. I don’t know if this is something we’ll be able to get in there for the next event or at launch, but there will be a substantial increase of length for legion names.
As for character names, I’m unsure, there will definitely be convention alterations, but I’ll let it remain unsaid whether or not the maximum length will be changed.
Fantastic news! Now, if they could just confirm the second part, the less ability to make stupid names the better, in my opinion!