How about having 3 different morphs, might be an idea to challenge some of the ever increasing demand on skills. From my experience there is a demand for magika dps abilities, stamina dps abilities, tank and healer based abilities, having an extra option might cater to more of the player base, whilst retaining the original ability.
I don't know how hard this is going to be to incorporate into the code, but just an idea i had.
Selcouth Nexus V16 Templar Magika Healer/Dps
Mrs Schadenfreude V16 Magika Sorc Dps/off heals
Malevolent Lust v16 DK Stam Dps/tank
Mephala's Rage v16 NB Magika Dps
Lara Nipplestorm v16 DK Magika DPS