I think the living tree concept that the courts adopt is always true of Parliament. It will be open to Parliament to review this law—assuming it's passed—as developments warrant a change. I would expect that there are enough groups with an intense interest in this that you will be invited to do so. I think you are safe to legislate on the basis of what we know now, bearing in mind that if things look entirely different in 10 years' time Parliament can always look at it again.
On November 22nd, 2016. See this statement in context.