Larson in the 42 next year, if true, will be rather interesting. He's got a lot of tallent, but I don't really think it's quite enough to jump to Sprint Cup that quickly. We'll see though some time if not in 2014.
Also, there's reports that ESPN and Turner (TNT) want out of the contract for 2014 to avoid a "lame duck season". It would be complicated and very difficult to pull off, but if the networks are interested then it actually is possible.