It was announced today at New York Comic Con that the Ultimate Spider-Man cartoon will be coming to an end, to be replaced by a new series coming out next year.

The new series will focus on Peter Parker learning how to come into his own superpowers while facing the pressures of being a normal teen. Headed up by Kevin Shinick (Robot Chicken) and supervising director Philip Pignotti (Marvel's Avengers Assemble), Marvel's Spider-Man will have a back to basics approach.
It sounds like it could be good, and a necessary corrective after Ultimate. Shinick wrote a Deadpool two-parter for Avenging Spider-Man.