At any rate, a lot can happen in well over a year. Including some premium or advertiser-supported cable/satellite channel picking it up (after all, didn't episodes of USA Network's Monk get rebroadcast on a broadcast network?) And now that I think of it, I seem to recall that DirecTV has an alternative way to order on-demand programs, for those whose STBs aren't Internet-connected.
I think this is really really unlikely. It's not like CBS is putting the new series on All Access because it thinks its the best way for the series to make money, and maybe a better way will come around. It's the opposite. CBS views the new series as the best way to launch All Access.