Maybe I missed something along the way, but while it appears that it'll be treated between Chicago and Milwaukee like a Hiawatha train, I haven't seen anything indicating that they would use a Hiawatha consist "as-is." Given the run time I'd be shocked if they ran it without at least a café car or equivalent - a roughly 6-8 hour trip would need some sort of food service that could suffice for a meal at minimum, at least if they want it to be successful. Whether that includes business class as well is unknown, though I'd be a bit surprised if they didn't include it given the run time.