Wakapedia:
โ Our goal is to have another Tech-Preview Server Meshing test for select waves of testers (Multiple Waves) starting on Friday and running through the weekend. This Server Meshing test will be focused solely on the Stanton system, with multiple servers sharing the load. We will be testing multiple configurations throughout the weekend with more servers per shard than we have ever tested before, increasing the number of players per shard to stress test the system.
This will not be just evocati.
https://robertsspaceindustries.com/spectrum/community/SC/lobby/38230/message/52087974
I'm guessing that we will most likely see servers covering each major zone throughout the solar system that includes at least one planet. If things are looking good they might take it further than that.
why spend time squashing bugs in a system they will not be on in the end. The server system as it is will be mostly replaced, dev time on it should only be to make sure its mostly stable. Once the meshing is in place and the server code that goes with it, I think there is another full pass on it then I would guess they would be full on bug mode.