The Law Commission has now drafted the Intellectual Property (Unjustified Threats) Bill.
The final report see above seeks to explain the Bill and to make two further recommendations. As the Law Commission explain:
When the project began, the introduction of the Unitary Patent and the machinery to regulate it seemed a long way off. Consultees flagged up issues about whether and how the threats provisions should apply to the new rights. The general consensus was that they should, and we agree. We continued working on the issue which involved speaking to stakeholders representing the interests of those in England, Wales and Scotland and to our working group. We have also worked closely with the Intellectual Property Office and drawn on their work focusing on the specific legislative changes that may be necessary in order to implement the Unified Patent Court Agreement and related regulations.