Yes, I would expect them to. They’ve already been starting to cover details in dev diaries. So far, we know that they were originally planning on spending all of this year on this one expansion, but they decided in the spring that they would push it back to 2020 to give themselves more time. I would expect the expansion to be quite substantial for those reasons. So far we know that the expansion is a return to Europe and will contain significant additions to the HRE and the Pope / Catholicism. They’ve largely been nibbling around the edges so far, so I would not be at all surprised if they had an infodump at the convention.