Polls suggest Northern Ireland would vote for a United Ireland when Brexit happens. If it is a hard Brexit this is even more likely. However if the UK somehow avoids Brexit, NI would vote to stay in the UK. https://www.belfasttelegraph.co.uk/...ack-united-ireland-after-brexit-37275256.html
Protestants describe their concerns about the likelihood Ireland will unite after Brexit - most of it fear that their stolen land will be taken back from them but also a brood of young macho men who are determined to fight as in the troubles to give themselves a name - they'll be the ones Ireland was concerned she would have to put up with if Scotland became Independent and Westminster gave up on N Ireland in response. https://www.theguardian.com/uk-news/2019/jul/18/northern-irish-unionists-fear-post-brexit-land-grabs
