There will never be an iPad 4.
It will be the next or new iPad.
No iPad 4. The official name is 'The Newest New iPad'.
But for making some kind of order or reasonable information, people will call it iPad 4, just as many of us just use the name iPad 3 for the present new iPad. (And BTW, I cannot really understand why Apple have dropped the "3" in the name, because it causes much unnecessary confusion, but this is countered by normal people giving it the name iPad 3.)
There should be no confusion. The latest MacBook Pros/Airs are not called by numbers, they are simply announced as the new MacBook Pros/Airs, and are called "mid 2012" MacBook Pros/Airs. Same with the iDevices. Those will be announced as the new iPad/iPhone and will be called by date and/or generation of product. In fact, apart from iPhone 4 and iPad 2 Apple has never appended generation numbers to iDevices.
Just to be clear it's not called the "new iPad". It's called "iPad".
Apple has referred to the current generation as "the new iPad" numerous times.
Link: http://store.apple.com/us/browse/home/shop_ipad/family/ipad
When the iPad 4 is released I suppose that will be called "The New iPad".
No that's the marketing term, so people don't get confused. It's just iPad. Look at the tech specs... You have iPad, iPad 2 and then iPad.
https://forums.macrumors.com/showthread.php?p=15176048#post15176048
When one in the years after its launch need to identify which model one is talking about, one either has to say "2012 iPad" or "iPad 3" - isn't this all what this is about? (Because "new" is limited to the present time, until the next model comes along.)
The device is not called "The New iPad". It's just been announced as "new iPad". When Apple announced new iMacs or new Macbook Pros/Airs, no one got confused in the past years, nor did they get confused with lack of numbers attached to them. There's no reason they should be confused now.