I don't see them doing that. The Annie came down from it's MSRP price quite quickly. It was found at $400 relatively early, and now at least one seller has been constantly selling it for $400 or less with coupons.
At $375 right now, I'm tempted on rebuying the Annie. Buying a new Q701+Annie pads will be around that $325, and that doesn't even include the headband swap, which makes all the difference to me in comfort. No one likes the bumps.
I'm sure the K712 Pro will start around $400 street price, but go down to just over $300 soon after.
Even the K701 had a high MSRP. Now all these headphones hover at the $250 range.
I will definitely get the K712 Pro once it hits to around $300. It no longer has that limited color scheme and Anniversary branding, but it should hopefully be sold everywhere, and for fairly lower price. Ideally for $250-275. That would HONESTLY make them the best deal in mid-fi cans. I love them more than any other headphone that isn't the LCD2 and D7000.