If this decision is reversed or vacated, then this “wedding” will be null and void. Just like what happened in New Paltz, NY and San Francisco, CA. The gay marriages in those localities were voided for lack of authority to grant them. The same will happen with this pseudo-marriage.
From what I've read, that's not likely to occur as the Iowa State Supreme Court is packed with liberals who will probably sustain the county judges ruling. In that case, the legislature will be hard pressed to craft a state marriage amendment, a time-consuming task during which time hundreds of homosexual couples will probably get their "licenses", solidifying their political momentum. Any marriage amendment passed will, in my opinion, likely contain a concession clause; such as that no additional licenses be issued but that couples already "married" will be able to retain this status. Or, the granting of civil unions to such couples - which is marriage by another name. This has been the language of an attempted amendment to reverse such a judicial decision in the only other state to recognize homo-marriage (MA.)
We only have to thank the people in such states who say a marriage amendment isn't needed until judicial tyrants like this legislate against the people's will. I say put the safeguards in place like 27 other states and avoid the corruption of the institution. Who doesn't put locks on the doors of their homes until after it is burglarized once?