Of course it will be produced for as long as customers want it. But the roadmap makes it also crystal clear where they are going: More DSP cores. We likely won't see anything newer than the Cortex-A15. TI builds what enough customers want, and if you're not locked in enough to their DSPs or general ecosystem, you'll move away. That in return means there won't be anything new. No single customer is big enough to warrant bigger cores alone.

A nice quote I remember "I'd rather buy TI stocks than their products".