I don't think he reviews products that haven't shipped yet. It would be a PR disaster if his video sends people to pre-order something that doesn't actually ship.
I feel like, that he would be interested in the product nevertheless. Maybe it wouldn't be a review, but just a demonstration of the ideas and concepts used in the machine.
I think it definitively would be worth a shot to just hit him up and ask if he could take a look at it.
He doesn't review products he didn't pay full price for in general (I didn't ask of course, I've just watched him for years). Maybe someday he'll order one!
