Being sort of serious for a second:
The next
year? There's a lot of really low hanging fruit you could pound out in a year even if you didn't add art assets.
- Unify the jobs on legendary weapons. Why shouldn't RUN get Ragnarok, etc
- iLvl Einherjar, complete with i119 versions of the Ein abjurations
- iLvl Limbus, with materials for +2 versions of the JSE armor
- Make corsair rolls resistant to dispel
- Buff bard songs, Madrigal, Minne, and the Carols in particular
- Double the network packet size (h/t Byrth)
- Change the "2 copper vouchers = 1 pluton/beitetsu/rift boulder" into "1 voucher = case"
- Allow sparks to be turned directly into gil
- Give a non-UC version of Apururu, Yoran-Oran, Sylvie so not everyone is in the same three unities
- Uncap merit categories. Get all the WS, fill out your jobs, etc
Not one of those things requires a single new art asset. It's all either dialog trees, editing formulas, or copy/paste/edit existing zones/monsters/events.
If you wanted to get
really ambitious
- Do
something with Monstrosity
- iLvl Trial of the Magians, the staves at a minimum
- Allow merit points to go straight to the Reisenjima goblin
- Either allow brews on the Aeonic quest or give a way to lower their cost, to make them more accessible