I've not heard anything from PIMI wife about going back to the KHs yet let alone the door to door work.
Many churches round here have re-opened if only for private pray and I am guessing that things like singing may be a factor in the reluctance of the Witnesses to get back together again. I also detect that many older ones are still quite afraid to go anywhere they may come in contact with people, even for shopping. On the other hand, here in UK you can now go to a football match with 70,000 others shouting and chanting.
The door to door work may a total different issue. JWs at the door weren't really welcomed with open arms pre-pandemic and now any callers are viewed with a certain amount of caution. Perhaps the publishers would be told to wear a face mask and mumble some sort of short presentation and leave a tract.
Re-starting is going to be a difficult process.