I come from a WvW perspective, and the problem Renegade has is mobility. That said the BIGGEST problem I see with these changes is the underline range of these utility skills being only 600 range. In my mind the old skills that are still available now would work with a long duration because you can take that risk to cast them and run away hoping to get out of reach of the enemies before getting crushed. You can do this a few times before someone from the other side takes notice seeing some crazy renegade getting 600 range to the zerg over and over. In WvW Renegade was a dead class to play. Its only advantage was crowd control. Now that that's being taken away because of the skill duration changes the class will be even more dead in WvW because I don't see any change in range yet... We will see if anyone sees my post. Make renegade skills at lest 900 range and able to cast on a wall or over a wall and then I can see the classes being used in WvW. Oh, and on a side note energy costs is a problem too, but I just wanted to focus on the BIG elephant in the room being range and over wall use for defense because the class mobility lacks comparted to every class in the game. Take that into consideration and then add the cost of energy to cast one or two skills and then you are dead by any other class out there.
FYI, I feel like I was the only renegade playing renegade in WvW and making it work. I don't believe there is renegade players that has me bet with time played and worked on to make such a class work.