The new 12-inch MacBook's logic board is just twice the size of the iPhone 6 logic board. That's amazing when you think about it. And only one third in size of the 11-inch MacBook Air's. It could easily fit into an iPad. So once again, I would say that it could be quite possible that we could see future iPad's with Intel Core M chips.
Via:
https://twitter.com/saji/status/576047682323636224/photo/1
http://www.cultofmac.com/315469/new-macbook-logic-board-is-only-twice-the-size-of-iphone-6s/
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