Making stuff up out of thin air only weakens your assertions.
It is called deductive logic, since we know we can't trust Tesla's reporting.
What do we KNOW?:
1. Elon loves to lie but also to boast. Now if the number of deposits were consistently growing (after the initial 400K claim) we would have heard about it. Yet we very seldom get an update on the actual current number.
2. People realized 2 things:
a/ There will be no 35K M3, probably ever.
b/ The 7.5K credit will run out faster than you can get a fairly cheap M3.
Because of these FACTS, it is safe to say that depositors started to cancel their positions in the line and even if there are newly signed up people, the cancellations probably outweight the incoming money.
3. They like to report absolute numbers (500K deposits altogether ever) instead of relative, current deposits (probably under 300K). This is a simple accounting trick and you only do that
when the actual numbers are declining.
What neither we nor Tesla know is how many still in the line people wouldn't buy a 45K car, just a much cheaper 35Kish car, the car that will never exist. Some of these people might gamble and try to sell their newly delivered expansive car, but that will just shorten the line.
In all truth, Tesla doesn't want to quickly satisfy the people in line because there is way less people willing to pay 45K than 35K. Thus they would run out of customers much faster if they were able to make 5K cars per week. That is not in their best interest, so my bet is the production topping at 3K/week.