Yu-Gi-Oh: 5D's
Information on the supposed new Yu-Gi-Oh series that'll be replacing GX has surfaced online. Apparently, this new series (if real) will be called "Yu-Gi-Oh: 5D's." The main character is said to be 18 years old (making him the oldest one yet) & his main monster will be called Stardust Dragon.
Keep in mind that none of this has yet to be confirmed. Still, I got a feeling that this all might be true. At the very least, it's all a lot more likely than that supposed new Yu-Gi-Oh movie.
Source: http://manjyomethunder.twoday.net/stories/4565871/