I think this ship has sailed already. If you wanted to make gold with 1.0.7 you should probably have acted as soon as the patch notes (or blue posts on the matter) came out.
I'll give you my 2 cents on the matter though.
Some
Crafting Plans have gone up in price (mostly legendaries), then fell down again (go figure).
Crafting Materials have become a lot more expensive, because people are saving to craft the new items/recipes.
Emeralds have become a bit more expensive (from what I remember), probably because of the new Marquise gems.
Rubies seem to have skyrocketed again (after falling into "normal" price a few moths after the Paragon system was released).
Flipping items (both in the GAH, and between both AH) still seems to be possible, but the AH market isn't nearly as active as it was a couple months ago from my PoV. I came back and put up some great deals that just aren't selling (mostly for WD and Monks). A lot of people have left the game because of the AH, so that's a factor as well.
I'm not an expert AH user, though, so don't take my word for it. Unless a few other users confirm all this