In a recent development, SNH have highlighted the work on their blog, particularly some issues around the Homestead Moat, which is located towards the western margin of the bog.
You can find the post at https://2bogsaswampandsomeislands.wordpress.com/2019/05/19/footprints-of-history-on-the-bog/
There are also some links to further sources of information - including some of the publications and a hint about the possible origins of the moat site.