I know it's a bit early to think of end-game things to do. But it would be nice to know what people think for end-game replay-ability, whether it be waiting for a new level cap, or the game is at the final level cap.
For instance, in a game previously hosted by Aeria (IE: LaTale) there were special cards that were dropped by certain monsters, Clicking on these monster cards would have a chance to activate a permanent statistical boost to your character.
I'm not saying that it be cards specifically (since Lime Odyssey already has a monster card system) but it could be more of LaTale's Item Codex, where you have a very low chance to activate a permanent boost to a statistic by turning in loads of misc. items that monsters drop (in the case of Lime Odyssey, grey-named items.)
This is just one thing to take note of in terms of replay-ability. I am wondering what others may be thinking about for this.