You know, thinking about this, I kinda have to wonder why the contract with Dragon Ball Kai had not been extended with Saban for the Vortexx. It seems like an odd thing to do, considering the show had done rather well for the network, while we were getting in the individual ratings for the shows for a bit. The only thing I think is setting off a red flag with me, is the fact Saban does not seem to be promoting the Vortexx brand at Licensing Expo. If it's the case of Saban dropping support of the block and just planning to honor the remainder of the contract, then perhaps it was the parties best interest were to seek another network to broadcast the show on, even if it meant shifting audience.
Of course, we'll find out what exactly they're planning to do with the block come closer to the Fall season, but I'm a bit concerned there.
Going on, it is curious why Dragon Ball Kai ended on Nicktoons, unless FUNimation, Toei and the Network had a falling out of sorts (or simply the Network did not wish to renew the contract, which happens), as it definitely had done well for the network. However, on the flip side, Nicktoons (and Nickelodeon for that matter) broadcast history with their acquired content (and to a lesser extent, their own shows for that matter) has always been an oddity, so I guess it shouldn't be any surprise the show had been shafted, especially given it's taking almost two years for Monsuno to rap up Season 2 in the United States. Original Digimon has also been removed, as well, with no push to seemingly go onto the later seasons. So there's that too...