Movie Rumors: Lucas Black making a cameo appearance in The Fast and the Furious 6 ending?

Lucas Black played the popular Sean character in The Fast and the Furious: Tokyo Drift movie. From the Tokyo Drift movie to latest Fast Five movie, Fast and Furious movies changed direction. The plot design is arranged like Star Wars movies, albeit The Fast and the Furious follows this exact order: 

1. The Fast and the Furious
2. 2 Fast 2 Furious
3. Fast and Furious
4. Fast Five
5. The Fast and the Furious 6
6. The Fast and the Furious: Tokyo Drift

 Sean enters the third and last movie. Since Han dies in Tokyo Drift, the writers stayed true to the plot. We see Han in Fast and Furious. He stars as a major player in Fast Five, too. If we make a full circle, then Han's character dies in Tokyo Drift. He is alive in all Fast and Furious movies. 

Sean and Han meet in Tokyo Drift. Bringing back Sean in The Fast and the Furious 6 movie would complicate the plot design. However, The Fast and the Furious 6 movie ending is rumored to show the big race between Dom and Sean. It is highly possible Lucas Black will star in the sixth The Fast and the Furious movie this upcoming May. 

Will Lucas Black come back in The Fast and the Furious 6? What are your thoughts about the return of Sean?