Just adding a few ideas here:
(1) I'd love the ability to save a password or use Touch ID rather than always being prompted to log in. Repeatedly typing the admin password on a large tablet device might end up being less secure.
(2) It takes too many taps to look at AP's and clients. I would really prefer a more at-a-glance summary of state similar to the ZD Dash layout.
(3) The ability to initiate SpeedFlex testing and see results from the ZD Remote would be great.
(4) Allow it to run on iPhone in addition to iPad. The UI seems like it would readily scale to the iPhone 6 / 6 Plus screen sizes, and I already frequently use the ZD web UI from an iPhone 6 Plus in lieu of having a ZD Remote app.
(5) The ability to use a ZD Console from the Remote would be awesome. iOS devices have a difficult time using the ZD command line. SSH apps tend to cost money, and some of them (like Prompt 2) cannot deal with the ZoneDirector's special variant of SSH where it is passwordless and the login shell is actually the authenticator.