Bugzilla is a ugly beast, but it’s a great, solid product. Never saw anything better.
Looks like a testcase manager may be on the way.
I think this could really help make things more efficient. Lets hope it all goes as well and this can become a new tool. Who knows, perhaps they can dump the code into Bugzilla and integrate it completely? Would be a great new feature. (pure speculation, haven’t seen it, or read much. No idea what the licensing is, and potential conflicts).
Regardless, sounds like a great method to enhance Bugzilla.