Well, designing and manufacturing are 2 different things.
You're right as in we will still have to rely on some Workshop having a million dollar fabrication setup with at least half a dozen experts working, to do the manufacturing part.
Furthermore, said setup will have to be optimised not for scale (as in workshop mode and not assembly line mode), focusing on getting one-shot success rather than mass-manufacturing and getting yield %ages.
So, we won't really benefit from things like Intel opening up their fabs, since they still expect a bulk order.
We still always have FPGAs.
Just need one with an open source VHDL compiler.