I loaded up the latest PTR last night. Unfortunately, it took a while to download so I didn't have much time to play with things.
Kheldul couldn't find either of the new major hunter glyphs. On the PTR there is a vendor in Throne of the Four Winds that sells glyphs. He had some shaman things but neither of the new hunter glyphs. I've been checking the AH but no love there of course. I also created a new level 90 hunter, thinking that he might have the new glyphs. Interestingly he had all the glyphs learned except the two new ones, so that makes me suspicious. Maybe they were ripped out because they realized how badly designed they are.
I did some playing around with the new amp'd-up Mend Pet. The redesigned major glyph is much better than they had it when I tried it a month ago. Originally, it was broken and of no value. (It healed 25% in just 5 seconds.) Anyway, it now heals the pet for 50% of the pet health over 10sec, instead of the normal 25% of its health over 10secs. The way it works is the HoT ticks every second for 5% health. Unglyphed it ticks for 5% health every two seconds. The Glyph of Mending will be in every Pet-Tanker's list of must-haves.