Keeping a close eye on this as we have a charity LEJOG organised for mid May
The accommodation we have booked will stay open if they are allowed to do so...small hotels, B&Bs etc. I'd guess that if they could stay open they could serve food (?). The problem will be if cafes, pubs and restaurants are required to close we may struggle to get food as we are staying in a number of one horse towns with just the pub for evening meal
We decided the lunch in the OP should be taken sooner rather than later.
Our usual meeting point is a Brewer's Fayre, next to a Premier Inn, close to the M1.
Brother made inquiries for this Saturday and was told they are closing on Friday, despite originally being fully booked for Mother's Day on Sunday, although cancellations were gathering pace.
Nothing on the Brewer's Fayre website, so maybe it's a piecemeal decision taken by the restaurant's manager.
I received the news in a short email from brother who says he is making inquiries into an alternative.
Best for him to do it because he knows better what may or may not suit my mother, and I'm not fussed what we do provided we do meet.
We might end up with a McDonalds ('I like their chips, dear'), but that will mean sitting in the car.
The restaurant closing is an inconvenience for us, but serious stuff for anyone such as
@nickyboy who has a more logistically complicated trip planned.