Few ideas to keep me interested:
Let us build the world. Remove premade buiding plots and cities, roads, harbors. Give us tools to build these. Remove fast travel from everywhere and world allready will get much bigger. Add resting system or energy system and remove LP.s
Add criminal system. Add Cheap Albion Online Silver fire. Remove player names and guild names when out of melee range or out of group. Group size max 5 players. Let us choose any melee skill on any melee weapon, ranged skill on any ranged weapon, magic skill on magic weapon, hybrid weapons possible, etc. Weapons give different stats modifiers: attack speed, attack range, cooldown reduction, healing boonus, armor, etc. Higher gear gives more skill slots.
mobs can use same armor/weapons/skill as we do. Mobs can loot players, patrol, flee.
Lower materials needed for weapons/armor/buildings. Reduce carry weight on bag and mounts to counter.
Let us gather,craft, wear, build anything as long we have Albion Online Items. Balance it with fame. If you dont have enough fame lvl you gear have big chance to get destroyed when crafted , takes much longer to gather and craft, is much lower lvl, etc.
Even if i dont play AO anymore then no worries, i allready bought founders pack.