They are maaaaybe at 1000 units per week now and have pushed back their 5k/week target to june ( and that is still Elon time ).
And even if 2/3rds of all reservation holders are waiting for later versions that number would still boil down to at least mid 2019 for new customers .....and even that only if Tesla can keep their promises this time.
Well, let`s just say I congratulate you for your optimistic character
If they manage 5000 a week by the end of Q2 and maintain around 1000 a week for the first half of the year, that's 26,000 cars in the first half of the year and 130,000 in the second. I strongly doubt they will suddenly jump from 1000 a week to 5000, it will likely be a progression allowing for production of around 50,000 or so the first half of this year. If they manage 50K + 130K, that's 180K total, which is close to half the reservations. If half delay, they will be into new orders by early next year.
Another factor in international deliveries is going to be how the incentive taper plays out in the US. With the delay getting production going in the US, they may open up configuration for international deliveries (at least left hand drive) earlier than expected to keep below the 200K line longer. Though I would expect the first orders to be filled would be Canadian.