I agree with almost all of these, and I could live with the ones I don't fully agree with. If they were to implement this entire list, the game would be so much better.
The main one I disagree with is party size 5. But people can read the megathread for the reasons why I pushed for a party of six and I know that one is still in heavy debate.
One of the only things I can think of to add would be the ability to create more custom characters for your party that you can switch in and out. What I mean is right now I can create a party of four custom characters using multiplayer work around. It would be nice to have the ability in single player mode to create our own custom characters and add or remove them from the adventuring party as we want. The functionality is already there for multiplayer oh, so why not just let us have the ability in single player?
Oh, and an option for proper D&D monster stats. I didn't see that one listed.
Anyway, serious congratulations and kudos to you for putting this together. If they just took your list and ran with this, I think it would shut a lot of people up.