There are a number of elements that go in the sidebar that seem malformed with the new width they've gained.
Site Stats (beta sites):
That looks incomplete - could the horizontal lines be expanded, or something like that?
Love this site? message:
That's still using the old sidebar width, which means it doesn't fill the whole sidebar and looks odd.
The "people chatting" chat room cards also have the avatar list cut off before it's anywhere near the end of the box - we could fit some more avatars in there.
There may be more. I assume some of these have been noticed already, but if they haven't - can we expand them please?