Renewal mechanics should be top (read: only) priority for the main development team.
Not to be disrespectful to those who want non-renewal mechanics, but everything is Renewal now - bonus scripts, items, mobs, etc. It is much more work than anyone anticipates to keep a non-Renewal branch.
I don't think this should take the time of the main developers. Their goal should be rapid (and accurate) implementation of new Aegis features. Perhaps a 'secondary' development team can manage the non-Renewal branch (if there is to be one).
Personally, I don't think there should be a non-Renewal branch simply because it'll be out of date, there is less demand for it, and not many people will maintain it. Non-Renewal admins could simply use eAthena.
(The new logo is great, by the way. There are still some old eA icons being used in various areas.)