There's a lot of interesting ideas in there.
One slight variation would be to go back to the way the Order is described (in some sources, like the Saga Edition KOTOR guide) during the Old Republic where there was a formal Jedi structure with a Jedi High Council and multiple Jedi Councils spread across the galaxy but Jedi Knights had a lot of autonomy and it was expected that they could take or leave the "decisions" of the "local" Jedi Council or Jedi High Council.
I liked that structure and the feel it gave the Jedi order way better than the prequels, but you could argue that centralization of hierarchy through the council on Coruscant was a sign of them losing their way.
Maybe I missed some clues but the Tales of the Jedi comics made it look like the Jedi Order was made up of wandering nomad types that got together in huge conclaves for important decisions. Having the assassination of a bunch of Jedi masters and the return of the Sith certainly explains a shift between that style and that of the KotOR games and comics. The Jedi Order would necessarily have had to change to various threats through the years.
IIRC even in the KotOR era Revan was pushing the Jedi to work more closely with the Republic Navy/Army while the older Jedi balked at that kind of militarization.
(I haven't read the WEG Tales of the Jedi sourcebook so I don't know what they said about the Jedi Order structure in there.)
Edited by Tikanni