We don't know yet, but we can only hope that we have a large enough palate available to us for things such as switches and other things.
I've been wondering the same thing. I really want to know what moveable objects I'll be able to use in my switches. And PaulKID, are you a switch maker? If so message me.
Let's take what we have fromt he Beta and videos. Crates, cones, explosives, vehicles, forklifts, etc. Just go watch a firefight video