Question

All,
Recently I have been hearing an increased desire to have TAXII be more tightly aligned and actually bound to STIX. What I would like to know is:
1) What does this specifically mean as far as the specification goes?
2) What will break because of this?
3) What do we gain?
4) What will be loose?
I have heard people say that we will gain a lot of simplicity and ease of development, I have also heard people talk about the need to do this anyway to really support Query. Along these lines I have also heard people  ask for the ability to send STIX content outside of a STIX Bundle.
Thanks,
Bret