The SCOUTS decision while interesting, I doubt will be earth shattering. And in the long run, will not affect to momentum.We'll know what SCOTUS decides,(if they decide to decide), in less than 30 days.
Section 3 of DOMA is dead meat, I donít think anyone with any intellectual capacity at all will refute that. Even the conservative justices where asking some pretty negative questions about the validity of section 3
As for the rest
DOMA section 2 will likely stand, meaning states will not be forced to recognize marriages preformed in other states. But section 3 going down will mean federal recognition of same sex marriages, that in itself is a huge victory.
More likely however is for the SCOTS to just toss Prop 8 back to the state, Dismissed as improvidently granted is the term I think. Ruling that the supporters of Prop 8 have no standing as they are NOT the government and can show no harm whatsoever from the overturn of Prop 8 ( always a critical flaw in their case )
If it gets tossed back to the state, the state judicial system has already overturned Prop 8 in court and appellate court, the stay will be lifted and same sex marriages will once again occur in California.
Even the worst case scenario, they uphold Prop 8, it will fall in the next election cycle anyway.
The SCOTUS ruling is interesting, and may be a faster track, but no matter which way they rule, the momentum will continue to recognize same sex marriages.