One thing that the iPad mini has going for it is its sleeker, more refined look. So it would make sense that Apple would use the design and style from the iPad mini on its upcoming fifth-generation iPad.
SW-Box has what it believes to be a shell of the upcoming fifth-gen iPad, which looks very similar to the iPad mini. You can see it in the video above, which compares the fourth-generation (the current model) next to the upcoming fifth-generation iPad, and on the right, the iPad mini. We have a thinner bezel around the screen, which has its benefits and downsides, as well as the slate-grey shade which is similar to the iPhone 5 colors.
Internally, we don't know what to expect, but I'm guessing we'll see the A7 chip make an appearance, as well as the TouchID fingerprint scanner which has been teased on the upcoming refreshed iPad mini 2 slate.