I think No Zombie is on the money with this
Its not that hard to imagine this to occur, if it is linked to the unique publisher id number system, said to be in development.
The unique publisher id is in development and was announced at an internal meeting which was leaked. I think they said that not all JWs would require an id but whether they just meant inactive JWs would not be on the system was not specified.
Individuals could log into their own number or have someone assist them. There would be no need for paper publisher cards but I can't see that reporting hours would go, it would make it much easier for the organization. They would probably link it to their email and could remind publishers when they haven't reported.
They are very slow for such a fast moving organization to get this in place.