I honestly don't think I've ever emailed Sidhe or HES once, yet somehow I've managed to find out everything I have needed to know... what part of Mario saying 'League Unlimited will be one of the first to know when a sequel is announced' didn't you understand?
I know you want a sequel as much as we all do, but really, just like before the game was released, harassing Sidhe, HES and anyone else isn't going to help things any. We have all the info they are going to give us at the moment, you aren't so special that if you keep emailing them about a sequel they'll let slip something to you that they haven't told anyone else.