In the new CP I didn't see an option to improve heavy/light attacks--- which makes these skills essentially worthless.
You could get up to a 34% buff on these, but without that buff Overload will essentially be weaker than your normal attacks--- a DK heavy attack is already very slow, but can pack a wallop as the front end of a combo, on a lighting staff or be used to take down a fleeing low health enemy.
Are these going to be replaced, or just join the long stock pile of now useless skills that used to be able to hit hard enough to kill that kiting rock troll that everyone else was only hitting for 3-4k before he broke LOS? or is that the point? any execute/armor set/proc/ult that can do a quick 15k needs to be taken out of the game? It seems like we are headed to a something where every attack does 3k and whomever can hit the other guy 10x first wins.