At this point its speculation.I guess another way of looking at it is AT&T DTV, UVerseTV, UVerse Internet and UVerse Phone would all fall under the AT&T Entertainment umbrella? Kind of like how a car company has different divisions. However in some of the articles about the name they suggested AT&T eventually phasing out both the DTV and UVerseTV names unless they were just speculating on that?
I haven't seen anything official in the company emails of late.