Now my bro's a smart guy... but the question in the title could make even his mother think otherwise. First of all, there hasn't been jack said about a PvP expansion or anything resembling it. Then of course there's the fact that the majority of the community prefers PvE only. ANet realized this and responded by shifting their focus primarily to please (appease?) the larger customerbase. Nothing wrong with that - it's business lil' man, you'll understand when you grow up. And don't forget how poor Andrew Patrick has been turned into a PvP martyr, shunned by his own colleagues who laugh and throw corn chips at him while he sits in the dark, unheated, corner office. Given all this I had to question my bro's sanity, being careful of his fragile mental state.
"Well, if eotn is virtually a[n] [unfinished] PvE expansion, wouldn't you think they'll release a mostly PvP expansion down the road? What else do you expect they would do after putting the finishing touches on eotn to keep people interested until GW2?" Haven't they catered to both audiences in the past?
I was shocked. What happened to him and why didn't I notice it earlier?? Maybe I could have done something to save him... maybe I could have done something to slow it down. More importantly, how would my life be like if I had to take care of him... would I feel bad if I dumped him at Shady Acres or would I have to give him the Old Yeller treatment?

Gently I explained to him that the 'finishing touches' for eotn included bug fixes, a few carrots here and there, as well as hard mode. Then I reminded him of how long it took for HM to be released for DoA - and how much larger eotn is compared to it. I brought up the work necessary to push the bonus missions out by November and development for GW2, even split accross the two teams. No, there is already too much for ANet to do from here and beyond GW2 for them to piece together a PvP centered expansion.
And "catered to both audiences?" I told him to leave the past behind because like his relationship with that hot green-eyed girl, it was full of painfull memories, broken promises, lies, love triangles, and $3000 in autobody repair bills.
That said, I can't remember a time in my life where he has ever been wrong. So...... what do you expect from the PvP expansion?