Forgive me if they are repeats, I skimmed only the first page. This is just a few things I came up with while working with the 1.0.0 make human models.
1.) An option not to have the textures exported. Personally I like working with a blank slate when it comes to my characters. This way I don't have to spend time painfully removing unnecessary textures.
2.) Allow the eyes to be pushed back for when a more anime or cartoony character is desired. I spent a considerable amount of time in Blender doing just that and making the skull a little wider in key places to accommodate the larger eyes that I want to have.
3.) No ears option. This leaves the possibility open for the anthropomorphic characters who do not need human ears. Instead they use animal type ears that are often simply pushed into the skull for lack of words.
4.) The sneakers, and possibly the rest of the shoes need to be properly rigged. I had to remove the groups and add automatic weights.
5.) True symmetry. I had to use the topographic symmetry in order to keep both sides close enough. This doesn't really bother me but when it came time to move the eyes around I had to go by the numbers.
6.) A skintight starter suit. Something that those who prefer to get down and dirty with clothing modeling can really use to extrude, duplicate and make our own clothing without losing too much of the polygon groups. For example, if I want to add a collar to the T-shirt to transform it into a tunic I can do that and simply add the finished collar to the needed groups. (Perhaps blender does this automatically? I haven't gotten that far yet.) I know I can add a conform modifier to make it conform but that doesn't help when there are two separate articles of clothing and I want a jumpsuit.
You guys have done an outstanding job. Keep up the excellent work. I can hardly wait for the 1.1 release, for the facial rig. By not using shape keys you give people the ultimate customization without having to scrap a lot of your work to get anywhere.
Thank you.
If I think of more I'll let you know.