Have you seen the SC2 Challenge Modes? They are somewhat effective at teaching people how to improve a specific skill, so something to that effect could work. Simulations of a raid where you have to dodge things from different directions?
rofl high five!
so firelands is delayed right?
The whole rewarded effort issue also goes for rep items. If someone puts the effort into a reputation grind in order to get an upgrade...that's also worth rewarding. If a caster comes into a raid at this stage with a blue neck on, when there is a pretty decent epic neckpiece available from reputation (I can't remember the faction >.<), then that's not exactly showing the greatest effort. Or enchants, if they didn't put the effort into say, unlocking the Therazane enchants and instead still are using the Sons of Hodir ones.
I heard Firelands was delayed.