How long shall be the ADSP BF609 series be produced by AD?

We are starting development of an application that will see a production cycle of 10+ years. Since we are in the initial development phase now, we are targeting to have a processor that will last us through the production run. 

We are looking at three AD processors - BF609 series, BF561 series and SC589 series. We are interested to know about their production plans by AD. When will these parts reach end-of-life?