...replaced by multiple deals between the UK and individual EU states...
Nearly - There can only be one deal with the EU. This is why I voted to leave. Some unaccountable, greedy career politician and his cohort of overpaid lackeys will do ONE deal for EVERY EU country. He won't give a stuff whether it is a good or a bad deal, just so long as it looks like the UK has been punished and the deal can be signed in a good restaurant on Barbados.