Anyone know if the air 2 Smart Covers will work just fine on the Pro 9.7?
Understood, so the cover won't stick anymore or is the sleep and wake function not present?
nope.The batteries are in different locations in the iPad Pro 9.7", so the sleep/wake function won't work with an iPad Air 2 Smart Cover. Magnets are magnets, so I'd guess they will mechanically function normally, sticking to the metal parts.
In this case there are technical reasons since the iPads are internally quite different.It will not stay on as they moved the magnets as those above said. This is another example of Apple moving things maybe for a technical reason, or economic reasons...