I wish one of these devs would just make a Diablo game and make us pay for the full game instead of creating IAP gameplay. The IAP system doesn't look nearly as bad as DH4 so far, but it's still a disappointment.
I'm a little surprised Blizzard hasn't figured out how to clone D2 over the iPad yet. Seems like that would be a license to print money.
Modern day Blizzard could probably do it but if they started today they probably wouldn't release it until sometime in 2016 and even with that amount of time it would be a stripped down version with a mandatory internet connection using up your data plan.