honestly if they stopped doing dungeons, i would not mind in the slightest. They've always felt like a slog with little challenge or variation outside of select ones such as Pharos pre nerf, Hominister and Amaurot

anyway feature wish list:

Healers reverted to SB ast and sch, hw whm, drk reverted to hw, warrior to 4.2+ sb, all of them with their flaws fixed. Job design changed to focus more on fun and unique playstyles and stay there
new healer job
cross class return with role skills separate
missing genders of viera and hrothgar and the current problems with hair/headgear resolved
better glamour system
fishing log and guide ui improvements and if possible nodes for the overworld
companion expansion
fc workshop outside of owning a house
solo endgame duties to get savage/ultimate gear with appropriate difficulty
relic to start in the 6.05 at the latest
level squish
phys/magical damage in the ui
70% filter in the ui
ability to change starting city
4* cards being usable in TT
character creation update with better textures, horns decoupled etc
hall of the novice updated and made mandatory for new players