I know that 150 units will be allocated to dealers in the United States next week. Monday, Tuesday? We’ll see.
If you were close to the top of the pre-order list and the dealer you placed your order with is lucky enough to get a piece, then you should be in good shape. If not, don’t expect to see anymore until the New Year.
Hopefully there were no manufacturing issues in their haste to get some units shipping pre-Holiday. I am not personally purchasing one (as I have no Canon lenses), but I will have one for evaluation for a couple of days next week.