First of all delete the new quests they are horrible, same goes for the bosses.
Who came up with that stuff? X.x
Take back the old favorite quests (the ones people enjoyed the most) and then
make new quality quests xD come up with fun items to collect add some
secrets every here and there (some might lead to quests maybe) that could
make the game more interesting.
Also make use of the tileset make a thought out desert place, lava place ect
for variation with custom baddies and monsters, use Draenins guide if you cant
think of anything decent
http://forums.graalonline.com/forums/blog.php?b=56