I don't think Obsidian will go down the Troika path. Feargus and the principles have done a good job of lining up projects and with New Vegas looking like it could be out for the Fall 2010 (just speculating -- Fallout 3 GOTY ed for this holiday season, Fallout NV for next and TESV/MMO for the following...) they should have an abundance of money hats to pass around once that happens. Also, isn't there a 3rd bun in the oven after Fallout NV?