Nowadays a console is just a locked down, less expensive pc. I think buying the components of a ps5 and assembling the pc is more expensive than just buying a console and liberating it, which is what I would do if I was to ever buy one.
I’m sure it will come with a way to update the map like opening with the second to last update to reformat it. It would be a shame for some megabases I’ve seen to just stop being able to play them
It says that you can still use the old rails but you won’t be able to build them the same way. You can just rebuild the trails you really need or want the other way