It’s probably too late now that 90% of the peak player base is gone but you could easily do all of these changes in a month… most of them in week.
- Remove tuning orbs
- Remove travel cost (Azoth only for crafting)
- Remove azoth cap for crafting
- remove recall cooldowns for houses
- Have all elite chests reset at 12p/12a (every 12 hours)
- add more fast travel locations, particularly around all popular locations.
- make wars a queueable pvp event like outpost rush so people can practice 50v50 wars whenever they want.
- add server transfers
- add name changes
- add level 590 faction gear
- reduce node respawns timers by 30-50%
- Have active game GMs to ban bots/spammers live time.
Less easy changes
- add mounts
- add more pvp instances (capture the flag, siege wars, castle rush, etc.)
- add areas, 1v1, 2v2 and 5v5
- add more pve expeditions
- add pvp items to be bought with pvp tokens from instances and areas
- add more unique items and actually make them look unique and different