I know this is a little thing, but would it be possible to change the message that appears when a user tries to edit a question/answer that has a pending suggested edit? At the moment you see the following text on a plain white background:
"There is a pending suggested edit in the queue, try again in a few minutes."
I think the above in a popup message (or redirection back to the question with the popup message) would be better suited over the current text on a simple white page.
This was mentioned here two years ago, but nothing came of it.