I'd like to propose a small feature (and I'd be interested in taking a stab at coding it).
It would be great to show the stats of a revision in the revision query results, like in the mockup. When hovering over the summary, it could show a tooltip with a slightly more detailed version of the summary.
My team has a policy of waiting for two reviewers to approve a revision before the author can land it. When looking at the list of open revisions, it is not apparent which have been "Accepted" by a single reviewer, and which have been approved by more than one; we have to open each revision individually to see what's *truly* still pending.
If we were able to quickly scan some stats, (# Accepts, # Rejections, # Comments), I believe it would make the experience better.
If on mouse-over, a more detailed summary could appear, including user name, review status, # of comments, etc. etc. -- that could be even cooler :)
Please let me know if you think this would be a welcome addition to the project. If so, maybe I could get some pointers to help me find out where to start with the code?