Unfortunately, I don't think this means they are working on an F-Zero game. I feel as if they must've planned from the start to include F-Zero tracks to appeal to those who are already in the series and just to offer a replacement. I feel as they are trying to channel all of Nintendo racing into Mario Kart as almost a way to forget about F-Zero and provide on the much, much better selling game; Mario Kart. Besides, the F-Zero fans are probably going to buy the DLC anyway, so why make a game when you could give them tracks for a lower production price? I hope this isn't the case, I'd love to see a new F-Zero, but that's how I feel.