Of course, what numbers would ENT actually be pulling in if it were one today?
Pay TV seems as likely a place as any, what with the presumed success of Game of Thrones on HBO. I mean I've never seen it, but I would assume it's a top quality production (for whatever its budget is). Ten episodes per season seems to be the standard with them now. It used to be thirteen. I remember wishing BSG could have remained at thirteen episodes, since most 'space' shows are already stretched in their budgets anyway and the variable quality usually suggests they could have been 40% shorter.
But meanwhile the market continues to change. Would even a pay TV option be practical by the time CBS considered it? And as you said, even now it's already not guaranteed.