You can either re-upload and submit, or recreate the meme.
If you re-upload and submit, there's a chance the mods may choose to unfeature it. However, since part of the point of the week is to protest the mods' rules, I don't want to discourage anyone from doing that, if that's what they want to do (personally, so far I've just been recreating mine, or making ones that aren't even deliberate reposts).
Basically I think anyone should feel free to do anything they want, and interpret the week as broadly as they wish - whatever seems fun to them to post, and what they think might be fun for others to see. Or if it's too complicated to think about, feel free to just ignore the week, and do something else! (Though we'd love for people to join.)