I too really want the Health app to come to the iPad. I'd much rather view my data on that screen than my iPhone, especially if meal tracking comes to the app. I get that Apple is concerned about privacy with this data but I really wish the choice was with the user, not Apple. I personally find other things that are already integrated with iCloud to be far more sensitive than my health data - in particular, my calendar, emails, and current location.
Even if it doesn't sync with the cloud, some sort of local Bluetooth/wifi syncing between devices would work fine. I just really would like the choice for my own health data viewable and stored on my own device.