They're not under any obligation to comment on rumors, but they did put out
the announcement within hours of the article going live. Which said the following:
Obviously they are not going to announce next September's expansion now, but the implication there is, I think, pretty clear: The live team will be supporting the game in a more robust way for the next year. When that year is up, it's reasonable to expect another expansion (though again, they're not going to announce that).
The only real question at this point is what the scope of the Live team is chartered with. Events and feature requests are reasonably well defined, but "experiences" is a catch all that does not set expectations. Perhaps because Bungie themselves don't have a pipeline defined for all 12 months and don't want to box themselves in. As we've seen, plans with Destiny are pretty fluid.