I would love to see void hunters get an assassin rush (or maybe like a vanguard charge from me3). Like a super long distance blink strike. Guaranteed kill plus gets you into (or out of) battle from a distance. Perhaps have a selection between an aoe or invis perk on exit. Solar titans could use an aoe, offensive super; think radiance but it damages any close enemies based on proximity (like annihilation field in me3). Let's be honest, arc-locks just need force lightning, lol