[gbhn]

The EU is chock full of exceptions and asterisks and different arrangements for different territories. It is completely possible that in the withdrawal negotiations Gibraltar, for instance, could end up with some kind of unique status.

[antr]

Any application to the EU can be vetoed by any member state. In the case of Gibraltar, given it is seen as tax heaven and it is a well-known smuggling hotspot, I really doubt Spain will accept it as an EU member. IMHO, Gibraltar is going to really suffer from Brexit.