The issue with the Game cams might get ruled unconstitutional, but unless the Supreme Court wants to toss precedent by throwing out the Open Fields Doctrine, then I predict a partial upholding but not a complete one. We'll see. Apparently this USSC doesn't mind overturning precedent. I can see it going either way.
Its an interesting case. I always took the open fields doctrine to have more in common with a plain view search (obviously in other circumstances), not so much a free pass to enter private property and search or conduct surveillance. As an example, if driving by an open field on a public road an officer observes illegal activity and addresses it, that's one thing, but intentionally entering private property without probable cause on a fishing expedition is another. Maybe my understanding was incorrect but it has been hotly debated in various courts over the years and several have agreed.