Minecraft Xbox 360 to Xbox One transfer?

If i were to transfer a map from xbox 360 to xbox one, would the map become the bigger sized map that the xbox one version has or would it stay the same? I know this was answered awhile ago but i can't find the answer anywhere for recently. I heard they were trying todo it but that was months ago.

?2016-07-13T18:14:58Z

By default, the map stays the same size. Once it's imported, you can choose to expand the world size, but it's up to you and it won't happen automatically.

Anonymous2016-07-13T18:07:13Z

yes