Brendan,
I think the thing that I struggle with is the definition of a "Freeze"... Please speak up and correct me if I am wrong here. This is what I think it means currently - if something has an enhancement bug listed (i.e. the idea is out there before the freeze date) - then it could still be included as long as the developer gets the code onto the bug report sometime around the freeze date. What I think should happen - The code should be pushed to master before the freeze date - nothing new after the freeze date.... (I hope that makes sense - with what I am trying to explain). But as others have said - this is really up to the RM. Here's a hint - whomever is going to be the next RM, please include a definition of "Freeze" for me ;)