First season is licensed and will be released sometime in June. Complete first season boxset, plus a 96 page book for like $37.95 from RightStuf.
The place holder for season 2 is just there by default, it will be released before that. But shit yeah, this is one of the few shows that would absolutely benefit from a dub. No Japanese influences at all and it's all English, so no translation problems, it could be almost transliteral from the original (except I guess they'd have to match mouth movements). Too bad they decided not to, but I suppose if they did we might have ended up with Americans faking British accents and sounding like absolute shit.