It wouldn’t be within current FIA regulations Le Mans (13.6km is way longer than the roughly 7.5km limit IIRC) but I wonder if it would get a special dispensation like Monaco for it being a historic racetrack? I don’t think access for stricken cars is a problem as the infrastructure is there from endurance racing but perhaps it wouldn’t be up to F1 standards (although that said, the WEC is an FIA-sanctioned event).
A lot of the races in Europe have tradition over the new modern circuits a little else.
The old Hockenheimring had “Character” as it was a unique layout on the calendar, similar to Monza nowadays. Most european F1 circuits are pretty ordinary Silverstone apart from the Maggots Beckets sequence of corners is a pretty ordinary circuit old or new.
France I feel is one of maybe 4 countries that deserves a race, while Magny-Cours is pretty mundane it served a purpose in hosting the French gp. A circuit located on the outskirts of Paris as suggested a few years ago would turn the french gp into one of the best attended (120k) and a highlight on the calendar.
Europe, apart from Austria which is coming back does not need anymore races, especially if F1 is limited to 20 races a year. I would much rather have a Mexico gp, New Jersey and South Africa and Possibly Thailand before another european round.
I don’t agree on Thailand. Like Korea and India I wouldn’t expect big audience there. I also don’t get why they’re racing at Bahrain where just the royal family is attending the race. It’s not really a big market for the manufacturers.