Just got my new cards in the mail (was extended through 6/2015) -- here's the verbiage that I think is new vs. last year:

"Please note that the integration of Southwest Airlines and Airtran Airways is scheduled to be completed by the end of 2014. When the A+ Rewards Program ends, we will automatically extend your Elite status as an A-List Member in Rapid Rewards through the 2015 calendar year. More information regarding this transition will be forthcoming."

Not unexpected, and I'll try to enjoy the upgrades while they last...