I just want to clarify a few things.
1. Drafts is an extension from 2008 that never got deployed for a variety of reasons. I spent a very short period of time on it and it never has been user tested or reached a level of maturity to even warrant testing yet.
2. Drafts is being used by 3rd party sites including WikiHow, Jack et al may have some useful input on how it's being used over there
3. As part of my 20% time, I was asked to take a look at getting drafts out of "it explodes your wiki when you enable it" mode – which I have done[1] – and take a look at making it better which I am planning on doing but haven't really made any designs or decisions on yet.
4. If we are interested in using this feature on our sites, of course we should update it to integrate well with any design changes that are going into the edit page. It was an assumption that it may get enabled, and design changes to Drafts have not yet been proposed.
- Trevor