As a GM for a current Pathfinder group and AD&D 5e group, it is interesting to see how Paizo is trying to compete. I have some diehard Pathfinder players that hate 5E and some that think Pathfinder is just too complicated. I look forward to being a part of the playtest with both of my groups to see their reactions. However, I too have invested in many 1E Pathfinder books that I would hate to see collect dust. I would suggest to the Paizo game designers that a GOOD Conversion book be put out to help keep the 1E books at least useful. Many other companies put out conversion books, why not you...