Darquad I completely agree me and you go back 17 years so I know how you feel.
Hit max level (3 time 70 85 99) 120 eh probably never going happen.
Hero 2 times - Check
Noble when top clan on the server wanted my head (Stabbed baium baby lol)
Built a level 11 clan - Check
Been a clan leader for 16 years - Check
Been an ally leader multiple times - Check
Been a castle lord of different castles multiple times - Check
Taken a conquerable clan hall and fortresses - Check
Own a permanent clan hall (Before merger and after Rune then to Gludio) Check
Real epics completed - Octavious - Check Lillith/Anakim - Check Freya, Core, Zaken, Orfen, Ant Queen, Frintezza, Baium, Baylor, Trasken (not many can say that one he is wasn't easy), Istina, Helios, etc. Check (Not Beleth never got a chance that one and now he is gone oh well)
Killed Dragons - Valakahas, Antharas, and Lividior - Check (Not Faurfion probably never will)
Old players like Darquad myself and anyone who has played more than 10 years wants actual content update, not just a higher level Ant Queen to kill again, you know you still have 2 dragons in the mythos Light and Dark, Shilien has never been put in game even though she has been referred forever. I mean like remove the whole area around Gludin and redo into a major content update of the spread of Shilien, put the dark dragon there, the remove big chunk of the Oren area and put the spread of Einhased there with the light dragon. Make people build up items for a next update when men fight the gods, have to Kill the light dragon to Fight Einhased or kill the dark dragon to fight Shilien.
There I just gave you enough content for 3 - 4 updates good enough for about 3 years of new interesting things to do that people have not done before, and you have to work towards a goal again. Make sure you give an option at different levels to switch sides so we do not have the old Varka/Ketra issues when people move between clans.