Some time ago I predicted that the UK Pound would strengthen against the Euro before then end of the year. At the moment it is weaker. Only time will tell.
My assumption was the Euro still has problems especially with Greece and fewer "rich" contributors once the UK leaves the EU. As I said before, I am no financial expert and may be totally wrong.
Most of the burden will be on France and Germany, both of whom want the EU to succeed. If Greece defaults Germany will be most hurt.