I would like to give some suggestion/ideas who hopefully would turn up good:
1. Create a roadmap for the project with objectives and a timeframe
2. Definitely keep the 32-bit version going.. it's going to be a major asset in the near-future
3. Try to stick more to the KISS principle.. remove all stuff not necessary to reduce size of ISO and sligthly increase speed.. maybe consider a "core" ISO for this
4. Do not include a web browser by default.. instead you can write a small program (some buttons) that would let you install by choice what you want.. there was something similar in Sparky Linux if I remember correctly. By extension of this idea the app ISO could be avoided.. instead this small initial program (auto started on first boot) could allow users to easily customize the programs to be installed with what they want
Hope my suggestions are constructive and won't offend anyone.