On Friday I ordered
http://www.amazon.com/dp/B01CV4P3PO
Due to the color mostly, but I'm afraid it will just be a 1-star review on Amazon since the pictures show not 12-hole speakers but just the 8 or so of the Air 2, and also the speakers are wide-apart from the charging port just like the Air 2. So either a bad mock-up or just rebranded Air 2 cover.
I got this one as well
http://www.amazon.com/dp/B01D06IYLW
I don't like gold on anything as I find it cheesy but this one had mock-ups which show correct 12-hole speakers, close to the charging port. They have more colors but availability for those is way too far from now (April 12, 20, etc).
The only reason I didn't go for that one, which was #3 on my list (and I think there were only 5 or 6 in total on Amazon) was because it was only readily available on black and the mock-ups didn't show the lower part. Now that there are more colors stated for the 9.7" I took a peek and it's the same problem with the purple I linked first, seems to be either a bad mock-up or just a rebranded Air 2 since the speakers are way apart from the center, and the cutouts don't have the 12-holes.
So there you have it. Look for the 12-hole-speakers in the bottom. If it's 12 and close to the center, it's IPP 9.7, if it's 8 and close to the sides, it's Air 2.
I know because prior to ordering I had to look a lot of tech journalists "hands on" videos to see the differences.
There is also the smart conector and blah blah, but the 12-holes just gives it away easily IMHO.