This gives credence to the Argentine/Chilean newspaper report in Spanish we had early on that had spoiled an early team elimination, and quoted a production source that had them traveling next to Germany.
My recollection is that even if CBS doesn't issue a press release this early, they do release listings information directly to the various publishers who compile that information for newspapers, TV magazines, TV programming web sites, and cable programming guides. If it's the for the fourth leg (i.e., staying two weeks ahead for the data) then the timing is right on schedule.
Now, does that totally eliminate England or Liverpool? Possibly not. All we have to go on, basically, is what CBS released just before the season started. Given that the Fab Four would commute between Hamburg and Liverpool by ferry in their early days, I could see something like that to allow production to get ahead of the teams.