I think that it'll shift to just being about abortion now since as of yesterday gay marriage is a decided issue, though a few holdouts like Hucksterbee and Pope Frothy will continue pushing for a constitutional amendment most will recognize that it's basically a done deal.
The new "Big Three" social issues will be abortion (that one won't end soon, even if there is a partial or full overturning of Roe- which I think is likely in the next 5-10 years), religious liberty, and drugs.
Religious liberty is just being anti-gay, which the GOP have almost nearly done from the 1970's onwards
And Democrats did until 2009. This issue gained momentum at an alarmingly fast rate, and thankfully it's over.
It's not gonna be over. There's a very clear and constitutional way to overturn what the five activist judges have done. Congress strips all federal courts of marriage cases and restore the state's right to decide. Also under a GOP president impeach and remove all five justices who read gay marriage into the 14th Amendment.
Please explain in detail how any of that could ever actually happen.