BE have released information on the National Finals next month, to read see below. I’ve also included other links / news items around the finals. Those that it directly involves, playing or spectating I would strongly recommend you read all links, in particular around Covid, Spectators, Tickets, etc.
https://www.bowlsengland.com/the-national-finals-2021/
https://www.bowlsengland.com/tickets-benfinals21/
https://www.bowlsengland.com/schedule-benfinals21/