For Trac 1.6 itself I am planning to do the following:
- testing Trac and its key plugins, submit patches
- review outstanding tickets, notably those with patches
- add translations
- add code comments
- update wiki pages
So largely stuff that does not need intricate knowledge of Trac but needs to be done anyway. The approach is to close tickets that do not need multiple review rounds or have a heavy-handed code impact.
-- figaro