I can't stand those loons at the booth across from the PC!
I do hope that the great CO PC staff from SFO remain club agents over on the other side.
CO has <20 flights a day out of SFO, I think they'll have little problem folding them into the UA side; CO is busiest in the morning, when there is an abundance of space in the int'l terminal, so even if United can't take over all of T3 yet, they can probably handle the UA flights to IAH, EWR and CLE.
I expect that the AA club will become a RCC when they move out, that'll balance out the space and would be great for that concourse and the terminal side concourse. (AC also shares that space)