There isn't much more information, but would this mean a franchise was relocating? More than likely, it would mean adding a 33rd NFL team...
Roger Goodell is a lot of things, but certainly above anything else, he's a business man. Goodell has grown the NFL to unimagined heights since taking over as Commissioner in 2006, and undoubtedly has plans to expand even further.
That said, a curious report has come out of BBC this morning-- Mark Waller, NFL spokesperson, has reportedly told BBC that there will be a permanent NFL in the United Kingdom by 2022.