Does it really matter that much?
The chase app is a good example of this. When do all apps have to be fully ios7'd up?
But as far as I know, that's just compatibility. It could still maintain the old keyboard. Chase app is already iOS7 compatible.
Truthfully after all this time I'm still somehow significantly better with the pre-iOS 7 keyboard.Not really, but since both keyboards vary slightly in terms of button placement, it can be annoying to get used to the ios7 keyboard, then find yourself ending up with all sorts of typos when you use the older keyboard due to muscle memory, and vice versa.
And given that the whole draw of iOS is a standardized, uniform user experience, I would like to see keyboards standardized across all apps, just because.