Ken wrote:

Wasn't Thameslink, the franchisee, named after Thameslink, the
project? By which I mean the idea of running N-S services through the
reopened Snow Hill Tunnel?

No. There has never been a franchisee called "Thameslink". The franchisee
was GoVia which traded using the name "Thameslink" for its services in the
same way that First Group trade as "First Capital Connect" now. Perhaps you
meant the franchise?