I'm not expecting a grand solution, but the path of least resistance, a ruling which generates the least amount of future controversy for the courts to resolve. I kind of expect them to federalize the May standard and essentially first cousining us. We can marry where we can marry and as long as we aren't breaking laws to prevent residents from crossing state lines to avoid the laws back home, they have to recognize the marriage based on the law in the place of its celebration. The feds will have to.No problem at all. The feds can recognize the marriage while the state doesn't; just like they did with inter-racial marriages, and they currently do with 1st cousin marriages.
It's gonna take another SCOTUS ruling to force states to recognize all marriages, even if they don't perform them.
That's my point; this will almost certainly be a multiple step process. Anyone hoping for a grand solution will be disappointed.
No right to marry but the right to be married.