Broadcasting & Cable has an interesting read on how the networks' mid-season shows have fared (mostly, not all that well!). It won't be any surprise to people who regularly follow the ratings, and neither will this:
Preston Beckman, executive VP, strategic programming and planning at Fox, says Lie To Me is likely to return next season, as the network will give it summer repeat airings.
“As ABC has learned painfully, when you put shows on in the spring you have to really be careful how you evaluate them,” he says. “[Lie to Me] feels like a show that with patience and in the right time period, next year can really grow into a player for us.”
I believe "likely to return" in this context loosely translates to "unless the ratings for its final episodes blow, it's coming back."