Just that- will a united Ireland be an after effect of Brexit? Let's be honest, without EU money NI is going to cost the UK government ££££; NI has always been the annoying, problem child. Both UK and EU have said there will be no hard border but, surely, there will have to be a border and customs control somewhere? So it would make sense to have the border around the island of Britain (Eng/Scot/wal)
The demographics in N.Ireland are changing. We no longer have a unionist majority at Stormont. Well TBH we don't have a devolved govmt at all ATM but that's a whole, other thread.
While I can't see a UI this year or next year I do feel that Brexit has brought it forward and there will be a border poll in the next 5-10 years.