The proposed Naming policy seems well thought out. I would add these comments:
1. I wish the policy could be re-written to include all east Asian names, which follow the pattern family name, given name. (I learned something from you -- generational names, which my father obviously knew -- when our family moved to China in 1947 we were given Chinese names; mine could be transliterated Dai Wan Kwang and my sister Dai Wan Sieu).
2. Eventually, WikiTree will HAVE to either give up the "Last Name, First Name" myth, or give up wanting to be a global tree. I think the global tree idea being more important, will force the change, and then the computers can be re-rigged so that the profile manager can choose whether to display the surname first or last. Surname as last name can still be the default position, but being able to alter the display would solve the problem without at all messing up WikiTree's filing system.
3. When I had the chance, I adopted the profile for Mao Zedung in order to have some skin in this game. Notice how the convention there seems to be to make the given name two syllables rather than displaying Ze Dung or Ze-dung.
4. I strongly recommend a subsection ===Name=== in profiles where there is any discussion appropriate for name, and that's almost mandatory for east Asian names. You allude to this in your chart under "text" but calling for a specific subsection where the name can be displayed in its proper order and characters along with any explanations would be good.
5. Abby brings up an important point on the use of Korean language characters. That's consistent with the policy of using the name as they would have used it. WikiTree's computers will apparently accomodate the characters; if the characters are used for the surname and given name, then the English transliteration should be used at least as a nickname. That solves one problem -- persons who only understand the Roman letters of west European languages will then be able to tell who the profile is -- but I don't think the WikiTree search functions includes nicknames (does it?) So if you are searching for "Kim", will the profile show up if the LNAB is the character for Kim, not the roman letters?