First of all you need to stop listening to the talking heads because their primary is to promote themselves and collect fees from their books, speaking opportunities etc...
Next you need to get some perspective on the Euro. Fact: the Euro is the currency of a major economic block, Fact: over the past few years these countries have shown themselves will to do whatever is necessary to defend their currency. Fact: Germany benefits big time from being able to trade in an under valued currency. Fact: Despite what you hear in the press, the majority of voters voted for a more integrated Europe at the last elections. Fact: The Swiss National Bank (SNB), Switzerland's central bank, holds Euro bonds equal to the deficit of the 7 seven biggest Euro group countries. Fact: During the recent Greek crisis the SNB conducted market operations in defence of the Euro. Of course no one knows what will happen in the long term, but within your time frame there is almost no chance of the Euro disappearing - there is too much vested in it for that to happen.
On the other hand, if we look at the UK there is a lot of uncertainty there. First of all in real terms the purchasing power of sterling has gone down of the past several years, look at the difficulties that people on a fixed income are faced with. Next there is the whole issue of a EU exit. If that does happen then at a minimum you can expect to see the City being hit badly as banks move off to Frankfurt and Dublin. The idea that British industry will do well outside the EU is doubtful, they have not faired particularly well with free access to the markets, so it is hard to see how they will do better when the barrier go up on a major trading block. If it does go pear shaped, then bank of England does not have anything like the resources of the Euro Group plus Switzerland to defend the pound.
Over the period you are talking about you are probably better to continue saving in Euro rather than exposing yourself to a very real FX risk for the sake of covering a very small perceived risk.