It appears Black may be the last exterior color they get to. If they finish off Santa Cruz with Black, my guess is that they stay on Black and switch over to Tahoe? But I have no idea how all this batching gets decided, so pay no mind to me.
We still haven't seen any Red VINs, either, so it's possible Red will be last in the Santa Cruz group, too. But I think we've heard a few folks say their DA is still confident about 2022 for Red, so who knows again?
I still think a good chunk of those cars in the Bears flyovers are Tourings that are already made, and they are working through those in whatever order they see fit.