Reintroduce the cube upgrade system!
Endgame maps should only require ancient manastones at min lvl80 (lvl60 are now basically irrelevant outside of starter zones)
Let Lacrum mini bosses actually drop something useful. (like ancient with a luck of legendary fragment)
Bring back the old stone morphing methods to exist alongside the new shugo coin ones.
Implement group bonuses or rewards for helping a newbie in certain instances.
Make it so everyone who participates and conquers an altar gets a chance at an ultimate stone coupon (not just the largest legions that typically ignore newbies)
This is just the beginning, but it's a solid base.
By the way, if you want to experience a game-changer, check out Aion Riftshade. They truly cater to players with balanced classes, active GvG/Sieges, and without P2W or bugs! It's launching in Q1 2026 and might have everything you're asking for. :)