Any word on what's after the living story?
I’m not sure what rumors you have heard. Living Story Season Two will begin some time later this year. A big feature patch happens before Season Two and after Season One concludes. No mention that they will deviate much from the two-week release cadence. They will be separating story from features in each patch. The patches will have one or the other. They have said for awhile now (and have been implementing it) that there will be more permanent content released.
We should know more about what is to come in Living World/Story after this arc concludes. =)