Being a big fan of Brawl, I would love to see someone import the Battlefield from that game, preferably over Smash 4's Battlefield.
Edit: Added two pics: a comparison with Sm4sh's Battlefield (which outlines the differences between both), and a different, somewhat more colorful (but also more saturated) version of that particular Battlefield appearance (the SSBB Battlefield as it appears in the popular flash game Super Smash Flash 2).
Edit 2: I have heard that somebody is doing Brawl Battlefield. Hopefully they'll be finished with it before this request expires.
Edit 3: I REALLY should be more precise when it comes to theses. Somebody did Brawl Battlefield, but not on the stage I expected. I am hoping for a version over regular Battlefield. I changed the bounty requirement to reflect this.
In order to win the bounty, you should fulfil the following requirements.