I'm guessing that Tosh Raka and kin haven't been as successful against wiping out the tsaesci as they hoped. Either that or the Kamal or Tang Mo have been giving them a hard time.
I'd be surprised if Tosh Raka and the Tsaesci existed in any recognizable form by now. Sure, they're immortal, but hundreds of years have passed since we last heard from Akavir. Tosh's new ideas could have been all about baking, and the continent could be united under a muffin-based government. The Tang Mo could have united with the Kamal under the Pact of Frozen Flung Poo, and conquered everyone else. Basically, whatever you imagine is possible.