QUOTE Williebraveheart: 'I also understand from elsewhere that there are extensive implications for dog owners travelling to EU after Brexit'.
Yes thats correct. We have already been through the process as regards that in the following order.
Rabies vaccination (as usual),
then wait 30 days,
then get rabies titre blood test taking up to 3 months for results(not usual!),
then Health Cert showing rabies titre test pass (hopefully) - 10 day or less before travel.
The whole process can require 4 months prep before your trip. Pet passport also required - that may change to a UK version only later.