It's very slim pickings for rumors this time around - just one, in fact - presumably because all the analysts are still in turkey comas.
Source: Japanese website
Chance it's true: 30 percent
Macotakara (a Japanese website) found supposedly leaked blueprints for the supposed "iPad Air Plus," which is apparently what the rumor blogs will be calling the long-rumored "iPad Pro" from now on.
Details offered are unusually specific, with exact dimensions (down to the tenth of a millimeter). The device will supposedly debut the next-gen A9 chipset and have four speakers arrayed around its edge so you'll have full stereo sound no matter how you hold it.
I've always been inclined to be skeptical about the possible existence of this device, given that the only source for it until now has been analyst rantings and ravings. While it's entirely possible this blueprint is fake, I can't help but recall a time about eight months ago when iPhone 6 blueprints leaked. They, too, seemed very probably fake at the time, but they turned out to be 100 percent accurate in the end.
My initial thought was that an iPad that big might turn out to be unwieldy. Then I realised I'm typing this on a nearly seven year old 17-inch MacBook Pro which is probably 10 times bigger volumetrically and five times heavier than this supposed "iPad Air Plus" would be. Granted, I don't hold this behemoth MacBook in my hands as I use it, so "unwieldy" may well be a relative term.
As for whether or not it makes sense for Apple to build this rumored device, I'm prepared to keep an open mind just this once. Call it a case of the holiday spirit. 'Tis the season, or something.