Oh well good luck! I was thinking about it, but I might just end up waiting for Christmas. I have a *hunch* that the inside cover that slips out will be exactly like the lenticular cover from Best Buy, except, obviously, the fact that it changes when you move it. Season 2's slip cover was a red overlay of the image and season one's was an altogether different image, so I'm assuming this will hold true for Season Three. I hope I'm right, since it DOES look pretty cool.
Someone did an un-boxing video on youtube (http://www.youtube.com/watch?v=OMA_nZ8OyNU) and the case inside is the same as the outside so your hunch is wrong. If you want the lenticular I suggest grabbing it now.