It looked to me as if there may be more back story, which for me (my phone rings with the theme from Halloween and I wear a Halloween 20th Anniversary jacket) is welcome, particularly with the "after-the-fact-back-stories" that were introduced in 4,5,6,666.
John Carpenter's Halloween was brilliant, but I find myself looking forward to Rob Zombie's Halloween ... although I do feel just a little bit dirty about it.
Cheers