Expansion adds new product (games) and those could conceivably be packaged and sold. So says Mr. SEC, who asserts that the SEC still has options on the table.
This significantly changes the landscape for me and (if I'm reading this correctly) guarantees that expansion of one sort or another is going to happen.
Either (1) teams will be added and additional games scheduled because of this, or (2) games will be added to the current schedule, even if teams aren't. And the likelihood is that with either option, the conference will choose to own the entity that showcases the new product -- thus enjoying the best of both worlds (contracts with major network partners and producer of its own TV network).
If the conference doesn't add any new teams it could still require 1 extra conference football game per team (e.g., Auburn gets added back to the Florida schedule) and two extra conference basketball games get added (e.g., two Western Division teams per year become home-and-home and rotate through all of them over a period of years).
Now I see why the conference has been so coy about expansion; they've done an extremely good job of anticipating possibilities and no one, including the Big Ten, holds better cards than we do.