Please move Heroic difficulties down one notch. Casual is the old normal, Normal is the old hard, Hard is the old epic and make Epic difficulty for heroics a harder difficulty.

As it stands no one runs casual. Make the new hard difficulty available to premium accounts and the new epic locked for VIP. So VIP still get the perks of opening on elite for their
streaks.

In short, the major changes recently made each difficulty setting easier than it had been. And f2p and premium currently have to play in easy normal to unlock the higher difficulties. Normal has become soloable for a newbie when it used to provide some sense of accomplishment. That is what casual is supposed to be.