My ipad fall on the floor and dented. If i bring it to the apple store what would they do? Will they change to the new ipad?

First of all, you cannot buy AppleCare+ after the fact. You must purchase the warranty when you buy the iPad or you have up to 30 days from the date of purchase but you have to have the iPad inspected at an Apple Store before you can buy the warranty if you buy it after you purchas the iPad.

And secondly, Apple will replace the iPad with a new or refurbished iPad of the exact same type. In other words, if you had an iPad2, they will replace your iPad with a new or refurbished iPad2. You cannot change the version of iPad to another version when you get the replacement from Apple.

What you might be eligible for is an out of warranty replacement, which will come with a fee. $249 for a 16 gig iPad 2, more for bigger drives.

The dent is what they'll call accidental damage and will not be covered by the warranty. If you purchased apple care plus with your iPad then you can get a replacement for a $49 service fee.

No. Accidental damage is not a manufacturers defect and is not covered under the standard one year warranty. You dropped the iPad, it did not fail on its own. In short, you broke it, so no they will not replace it with another one.

But if you have AppleCare+, the iPad is covered for two incidents of accidental damage and Apple will replace the iPad but you will also have to pay a $49.00 deductible.

If you had purchased apple care plus you would have paid the $49 fee for a refurbished replacement instead of the 200ish fee.

The only time anyone will get a free replacement is if there's a manufacturer's defect. And Apple's policy is (last time I knew anyway) if there is a manufacturer's defect discovered within the first month you get a new one, beyond that a refurbished one.

Apple Care plus can only be bought with your device when it's new or within 30 days of purchase. ANd if it is within that 30 days, you device must be inspected by an Apple store employee to make sure you're not buying coverage after damage is done.