PTR in the next two weeks seems completely acceptable though. Hell, even today! Nothing's stopping Blizz. If they have lots of things to test and balance out, as long as those things are at a somewhat playable state, PTR could go up.
I expect the patch to release within a month, probably without a ptr. Duelling does not seem like it need much of a puplic testing, especially since they don't want to balance pvp or at least 1v1. If they add any other significant chance, there may be a ptr in the next one to two weeks. If not I would expect a ptr for 1.1 sometime in february.
Unfortunately, based on the last year or 2, Blizzard is real careful to release anything that will cause immediate uproar in the community (even though they still somehow manage to cause that....even after waiting forever)
I have a feeling they will not release duels without also releasing a bunch of class and build balancing at the same time. Whatever they were testing in arenas, they surely found some obvious balance issues, and they will fix those at the same time they launch duels.
I got it, we all want duels, and I got they also said they dont want D3 to support E-sports.....but they never said they won't balance PVP at all. And in all honesty, we all say we dont care, and we just want duel NOW!.....but if they release and there is a massive unbalance between all the classes, it will take less than 24 hours for the forums to explode and everyone be 10 times angrier than they already were.
So I would not expect dueling to come out by itself, and before some balance tweaks. If that means a PTR.....i have no idea.
Well originally, before deciding that PvP is to be scrapped and made anew and inserting duels into 1.0.7 (let's assume that the decision was made way before 1.0.7 began work), the patch was originally to be a pretty well-sized balance patch that would also add new stuff. CMs were saying around the forums around the time 1.0.6 went live that 1.0.7 would be an actual patch (unlike the first) and a good amount of changes was to be expected in it.
I'm gonna go on on a limb here and say 1.0.7's patch notes will be about 25-30k symbols, or the equivalent of 6-7 screens of info.
Fixing up Monks would be nice. I have one but it seems almost impossible to get it up and well over the 100k mark, at least without spending a ton of gold/money, way more than what it takes to upgrade a Wizard or Witch Doctor.