Was the composition of the court different when they ruled against us? Because I know Sotomayor and Kagan were added only within the past few years.
I suppose what's really important is how Kennedy swings on gay rights issues, because that swing vote plus the liberal bloc would get the majority.
...Yep, after poking around on Google, looks like Kennedy will give us the 5-4 majority.
Apparently his mentor was gay and he's actually taken it upon himself to write majority opinions supporting pro-gay rulings.
So barring some completely unforeseen upset like a member of the liberal bloc being secretly replaced with a goateed evil twin, marriage equality should be the law of the land once the Supreme Court hears the case.