Be able to go to the next/previous submission in order via directly the submission profile page.
a mockup I made. Although, I showed the next/previous links on the top
(which seems more noticeable and easy to spot), they can either be on
both the bottom and top sides, top only, or bottom only; wherever they
seem most appropriate.
Here's an example website of what I mean.
In my opinion, it'll save up some time and a useful feature to have considering if you are going through a lot of submissions of a specific section (e.g., Maps, Bugs, etc.).