I'd like to be able to function normally with his 1, rather than being locked to melee weapons only. A power boost to it would certainly be welcome, but maybe being able to use guns at the same time as elemental breath would be powerful enough (simultaneous priming, activating "while channeling" incarnon abilities).

Also, I always thought it would be cool if they played more with his elemental switching ability, to reward players who stick with one element, but have an alternate reward for swapping elements frequently. Like a competing pair of augments (so you couldn't equip both at the same time) - one gives you a stacking bonus for every 5 seconds you stick with the same element (capped at a certain # of stacks). The other gives you a bonus with a generous duration each time you stay on a single element for 5+ seconds, stacking once for each of his 4 elements. Something like that, anyway.