I fully understand, it is not that easy to bring out a new application.
Developing designer first, well ok. Photo second, why not. Then anything for windows? Well, I had to swallow hard, but ok, money and markets... very important.
And now? "IPad takes ressources", so it is not in 2015, not in 2016 and now, if everything works, at the end of first half 0f 2017, maybe... And we are talking about the beta, not more.
I will tell you something. I do know some advertising a2gencies, cause I do Apple support as well. I told them to test photo and designer and they said, "very interesting products".
They do like adobe in general, but not their pricing anymore. BUT: They will never switch to affinity unless there is a mighty desktop publisher.
You want to make affinity great and being a standard? Bring out publisher asap, guys!!