Yes, definitely, but I don't think giving my assassin 6k DPM or more to get in the same league is the right way to go, not to mention that all of this can't come from the Assassin tree, the EDs need to be rebalanced including a substantial buff to Shadowdancer. Which can include more DPS buffs but just lumping on more and more damage is the wrong way to go about this. Some damage? yes and it needs to be decent enough and Assassinate also needs to become the top insta kill again coupled with good to great damage and poor defences and heals.
But don't make Assassins 'easy'. As long as they don't become an easy button I can get over anything else, but an easy button is what we don't want.