Do some maths and see if you want to take the risk of steling falling further:
Today your GBP 46,000 is worth approx €55,273 (at a 0.88 rate). Invest that and it is worth €55,670 (€55,273 + 6.5%) in a year.
Guessing where sterling is going is crystal ball stuff, so lets see what rate it would need to be to get €55,670
£46,000 + 3.5% = £47,610. You would need sterling to be at 0.855 to have the same amount in euro. £47,610/0.855 = €55,684
You would need to factor in DIRT as well. I don't know how FX gains are taxed.
Therefore, if sterling is worth more than 0.855 next year, you are ahead.