Unfortunately it's true. According to Breevort, Bendis' All-New will be replacing Uncanny just like New Avengers replaced the original Avengers:
"'Uncanny Avengers' is a completely new series. Brian's 'All-New X-Men' replaces or succeeds 'Uncanny X-Men' in the same way that 'New Avengers' succeeded 'Avengers.' And speaking of 'Avengers,' that book simply passed from Brian to Jonathan, and increases its frequency to twice-a-month," Brevoort explained.