With the next update of Minecraft being announced, rumors have spread that the server is going to reset again. That rumor is only partially true and mostly for Factions, NOT Towny. Factions will be the only world that gets a reset. Mason, one of the devs, also told me that it will also be possible in the future to have everyones inventory remain intact in case any future resets are needed. That means inventory, balance, McMMo skills and enderchests will remain the same. Towny already has the necessary plugins and such to keep everything saved.
To make a long story short:
Towny will NOT reset when the next update is released
Factions world will reset
Inventories, McMMo xp, enderchest and balance will NOT be reset anymore in the future since a plugin has been implemented to keep it stored no matter the update