This idea has always made sense to me - many people are not opposed to the idea of organ donation but just have never gotten around to signing the register.
It will be interesting to see if it makes it to England as well and, in the meantime, go and sign the register:-
Wales became the only nation in the UK to introduce a "deemed consent" system in December 2015. The Department of Health in England said it was waiting to see how changes in Welsh legislation impact donations. Ms Smith's daughter Megan Carson, 15, first became ill on a school trip last summer and medical tests revealed she had auto-immune hepatitis - a disease in which the body's own immune system attacks the liver. She needed a liver transplant and luckily a donor was found within a couple of months. ...the experience made them realise the shortage of donor organs could be helped if England adopted the same system as across the border. It means adults would be regarded as having consented to organ donation unless they have opted out. of those on the donor register.