No simple answer to this one anymore.
The Netherlands will have a dual tax agreement with the UK so at least you don't pay tax twice. However the Chancellor will want his pound of flesh if at all possible. To be classed as an expat is not that easy these days and any connection with the uk like kids at school or property ownership can trip you up.
I'm afraid you must speak to a tax accountant that specialises in these situations. Good luck.
KH