My quote is the EU's official statement for a coordinated Brexit (assuming the House of Commons accepts the negotiated deal one day). Even if everything goes well, UK nationals will not be able to enter via the automated gates. Or nationals from the other mentioned 60 nations will be capable to do so also.
PS: The UK is either in or out. Brits have to learn that they cannot have the butter and the money for the butter. It's entirely the UK's choice.