Chris,
As far as I know everyone is still on for Nashville. It is the high light of the whole weekend! Hell I can't wait to hit the roads with you guys. Huntsville has just worked out to be a bonus night. But don't worry, everyone will be there.
Like I said before, as for the park and grillin', I would be more then happy to help out with the cooking. And I would much rather hang out where we are not hounded.