Here is a post from the Jawa CZ Owners Club Facebook page by David Angel, owner of F2 motorcycles, and UK Jawa importer. Seemingly, there may be a small glimmer of truth in the article after all :-
"I am in constant contact with the actual owners of the brand (Jawa Czech), after all I am the UK importer. There are a number of issues concerning approval, distribution, brand name agreements and most importantly quality and support. At first this project was 100% never coming to Europe, but now there seems some glimmer of hope that it might, with support and quality control from Czech. However I do not have a time scale and I believe 2020 is a little optimistic. Expect them to cost considerably more as obviously in Europe we will want stuff like primer under the paint and electrics that work in the damp."