Actually the Bill is an “incorporation” of all existing EU laws and regulations into UK law. The Bill is repealing nothing except the jurisdiction of the EU and European Courts. Apart from necessary technical changes about the naming of authorities who will arbitrate when there are disputes nothing will be different.
EU workers’ rights as they exist today will become UK workers’ rights, EU environmental laws will become UK environmental laws and so on and so forth. Of course at some time in the future it is possible that a democratically elected UK government may seek to improve upon existing, that is previously EU, laws in the interests of the UK – but that will be a decision of just that, a democratically elected UK government.
The Bill should more correctly referred to as ‘The Great Incorporation Bill’ designed as it is to incorporate EU laws and regulations into UK law.