Yeah, they have been silent about this. I guess it is a check DriveThruRPG on Tuesday and if it is there they are releasing it in PDF and if it isn't they are not.
I think they are working on something and I don't know if it is with this Morningstar or not. I really hope it produces PDFs and not some other format because I believe PDF readers will be around for the rest of my lifetime.
I really hope they release the core books in PDF because I am sure they will look very nice. But this silence is not good. They don't need to tell us their detailed plans, just if PDFs are in them.
I will say this though, they best not hold off on releasing the core books if they want me to purchase other 5th Edition books. That won't happen.