Price drop across the line.
One thing Apple doesn't get credit for is how they completely blew up the cell phone industries pricing structure. Prior to 2007 then it was common to pay $4-500 for garbage mid-range flip phones but then Apple came along and year after year they kept dropping prices and forcing the industry to follow. Tablets can easily go the same path because the competitors are now trying to beat Apple on pricing, but at any point Apple can squash them by dropping $200 off yet still remain profitable.
Imagine this:
$299 - iPad 2 16GB
This would make sense because despite it being "last years model" it is still a few steps above the competition so it's far from being a dead product and the pricing would make sense for their movement to EDU.
$499 - iPad Pro 32GB
This would be the iPad 3. Better specs are the obvious improvements but the benefits of more speed/higher resolution is that Pro apps could be possible. Think Aperture, FCP, Photoshop on a tablet! Also, if you've ever tried taking notes on an iPad then it requires larger writing because of the lower res screen, but a higher res screen brings us one step closer to replacing paper with tablets because we can use a stylus and actually write note in normal sized letters and have it still be legible (well, most people. my handwriting is terrible so I prefer typing). A simple product doesnt mean it can't do complex tasks and they can price the iPad Pro to be a true computer replacement for many people if we see tablet versions of the apps we use on the desktop.
So while a new iPad is exciting, the pricing is really what I'm looking forward to.