Considering the Simpsons is currently in contract disputes, that might not be for much longer. FOX wants all the talent to take a 46% paycut because ratings are down 14%. Cast says they'll do 36%, but only if they get more points in the merchandising. Considering that the Simpsons merchandise isn't doing too hot right now ether, I think FOX is being stubborn by refusing the deal... but then again, they might simply be looking for an excuse to dump the show.
But then again, it's still the lynchpin of their Sunday nights. Even a bad episode of The Simpsons is still better than a good episode of Family Guy, American Dad, or The Cleveland Show (and I LIKE all those shows). I don't even know if Bob's Burgers got a second season... and this new show about the smart ass kid looks really bad.