As far as having an impact to a maker in England goes I see little here to concern me. Illegal to 'BUY', seems to be the big Hoohaa here, I see no mention of the word 'Sell'
Beside which, if I do make a japanese style Katana then purely by dint of being a hand made replica I think it falls outside of the 'wall hanger' bracket this legislation is aimed at. I'd also guess my prices would keep non serious collectors/enthusiasts away.