The Withdrawal Agreement stipulates that during a transition period that will last until 31 December 2020, EU law remains applicable to and in the UK. This extends to the EUTM and RCD Regulations and their implementing instruments.
情報源: Impact of the UK’s withdrawal from the EU – EUTMs and RCDs: updated information
No Deal Brexit: Advice for IP Practitioners, 1:57
Parallel trade and IP – what will happen when we leave the EU?, 2:48