This is how I feel. I'm excited, but I also feel like "what would they do after the events of the original?" where I'm eagerly waiting the new episodes, but cautious as well.While I can agree that FLCL didn't need more episodes, I'm not going to lie - I won't say no to more.
And if they miss the mark, it's not like the original episodes weren't self-contained and the rest can be easily ignored.
At the very least, they're keeping it short with only 6 episodes per season. Glad they're sticking to that format instead of waiting for a full 13 or 24-26 episode run.