Firstly, let us make this fact clear:
Think of a poll as taking a spoon of soup from a pot and tasting it.. Now, think of a forum as a strainer spoon with very big holes. If you're posting on this forum, you are a carrot or an onion and will taste like a carrot or onion and your flavor will NOT be indicative of what the soup actually tastes like.. If you've followed this metaphor, you understand that a poll cannot be conducted on this forum, EVER. I am not posting to garner or gauge support. Please do not post a +1 or -1. I believe the intent of this forum is to discuss PvP concepts and ideas, not to bicker about whether or not PvP is desirable. If you're here to shoot holes in PvP ideas simply to do it or just to tell people you do not want PvP, you're here for the wrong reasons. Turbine can never get a valid sample of their audience from the forums and I think they're smart enough to realize this and are not swayed by the handful of people who troll this forum just to "-1" PvP.
Now, we can talk. I desire true end-game. Epic destinies and higher-tier content is good but truly only push the end-game further away and do nothing for the actual end-game. If "running raids until you can do it blindfolded to collect ingredients and/or get loot so that you can gear up so that you have an easier time running raids that you know well enough to do blindfolded" is valid end-game in your opinion, that's great, this is the perfect game for you, and I don't want to take that away from you.
As an old-timer, I've played a lot of PnP and I've DMed quite a lot. Once my parties get beyond the 4th circle, they're expected to take considerations for mind-control effects.. If they fail to take these considerations, they are subject to being dominated or confused. Confused players' actions are determined by dice rolls while dominated players are forced to perform at their maxim to end their party. This is PvP. I've also had quite a few occasions where the Lawful Good cleric and the Chaotic Evil assassin become at odds.. this is PvP. The evil alignment is not the only way for PvP to happen.. Imagine a Lawful Good paladin and a chaotic good barbarian: their differences will be vast and they will come into conflict that has a possibility of violence. PvP! To say Pen and Paper Dungeons and Dragons did not have PvP is to say that alignments do not matter... Which is the apparent case with DDO.
DDO's alignment system is just the invisible wall preventing barbarians multiclassing into monks. It's absolutely meaningless without PvP.
So, how can we add value to alignments and thus facilitate true role-playing? I'm not sure but I know that allowing players to play the Evil alignment would be essential... We really could leave the 1-20 experience the very same... Adding a City of Villains-esque zone for those who want to participate in PvP... Give them an inefficient way to roam the zone, fighting and killing other players to progress thru their epic destinies? With some control points that Good/Evil can fight over... It could be a plane where the laws of physics are slightly different, which could explain why players have an exorbitant HP pool and why some spells do different damage.. Things could be tweaked exclusively on this zone to help balance PvP..
If you disregarded the first paragraph and want to argue that the developers should not spend any time on PvP I can tell you that I've given Turbine multiple thousands of dollars over the years and would give them thousands more if they created a PvP environment for a game with one of the best engines for PvP on the market. It's not about alienating their current audience nor attracting new players.. It's about fleshing out their game and making it truly full-featured.