Yeah, I don't know, hopefully we will get a lot of technical info tomorrow! Not just on the suspension, but on the whole car.
The thing is, 3D printing isn't even particularly good if you are going just for a simple part like a wishbone. Forged and machine parts will be superior in that case. Where 3D printing really shines is with complicated parts that have a lot of internal structure, or that can benefit from being hollow. The Bugatti control arms are complicated, but I am not sure they need to be.