And no, not as plaintiffs.
David Boies and Ted Olsen last faced off in Bush v Gore, on opposite sides. Olsen was Bush’s Solicitor General and Boies won the US’s antitrust case against Microsoft (later lost on appeal). Now they are together, on behalf of two same-sex couples who wish to marry and claim that California’s Prop 8 violates their federal rights to equal protection and due process.
It’s a hard case to win, but those are two very good lawyers. I’d rather not bet against them.