This is a very different, and less populated, world than that of Viking reenactment. Post a question like that on a Viking group and you would likely a number of people who have either already pulled the article, or who know the exact publication date and have it on order, or whom at least know who the authors of the pending project are (so they can stalk them until publication). Kelticos used to be the go-to place for information, but it seems that forum is less updated than it was back-in-the-day (at least on the types of material culture in which I am most interested). It is also blocked from my lunchtime-research due to being an insecure site. Sigh.
The silence on the subject was still was surprising to me. In a way it is a little frustrating (though absolutely no one's fault), but also a little exciting to dive into a less populated pool.
But back to Kern:
City of Zurich (this has the links for the dig photos as well as the artifacts): www.stadt-zuerich.ch/hbd/de/index/ueber_das_departement/medien/medienmitteilungen/2019/juli/190705a.html
The initial media release on the project: www.stadt-zuerich.ch/hbd/de/index/ueber_das_departement/medien/medienmitteilungen/2017/170505a.html
The Smithsonian piece is here: www.smithsonianmag.com/smart-news/iron-age-celtic-woman-was-buried-hollowed-out-tree-trunk-180972773/
There are a number of other news articles on this find, but I am excitedly waiting for the in-depth analysis of the textiles!