Professor David Phinnemore:

It is an under-explored issue. There is scope in the protocol for the UK and Ireland to pursue the development of bilateral relations, particularly in regard to the common travel area. One way of reading the protocol is that there is an expectation and hope that some of the issues which may not be provided for in the UK-EU relationship or in the protocol in regard to Northern Ireland and the EU could be addressed, at least as far as British and Irish citizens are concerned, within the context of an enhanced common travel area.