A couple of points:

Availability: I’ll be on vacation thru the middle of July: 12^th - 21^st  

We also need an additional section: 

1.1.5  Misc.  [for lack of a better title] 

We have a bunch of pairs of possible variants which don’t fit any of the categories listed here. ( In some cases, we may manage to discern a general principle for a few of them.  However I suspect that it won't be worth the effort, in most cases, to try to come up with one.  Mostly we are just going to have to go thru them one by one.)  We aren’t going to get to that before we send off the latest version to the IP -- however we can work on them while awaiting the IP's feedback.  Still we shouldn’t lose track of them either.

To take just one example of the Misc group, by way of illustration, consider k (006B) and ƙ (0199).  The Small Letter K with Hook occurs only Hausa.  Those familiar with that language, trained linguists, and Unicode experts may be able to spot the difference.  But outside that tiny population, the vast majority of users, even the IP’s “reasonable careful user”, will simply never realize that there is something there to see.  Could they find the difference if they looked at the two glyphs side by side?  Perhaps.  But as the IP has been at some pains to remind us, users will not have the luxury of side-by-side comparison when looking at a domain name.