That would be really cool if it did turn out to be Obi-Wan with Grievous' ship and Anakin with that Jedi Airspeeder, but I'm with Jared in thinking this is probably not the case.
If there is yet another Anakin Starfighter, Hasbro will have successfully pissed people off by using the same tactic twice in less than four months. First they release the Sneak Preview Anakin Starfighter in March, follow it up with the TRU Green Fighter (with Anakin) the very next month, and they're going to follow it up with ANOTHER version of the same fighter?
Unless the Anakin listing is a mistake or a price drop, TRU and Hasbro have shot themselves in the feet big-time.