The respawn rules are:Any player that loses a hull for any reason would respawn at the nearest dock surely?
- if there's a dock big enough for your ship in the current system, respawn at the closest one of those in the system
- if there's not, respawn you wherever you last docked
- if you have legal issues at the station selected by the above rules, or were killed by someone collecting your bounty, go to a detention centre instead
If you just die in a random system on the far side of the core, you won't be recovered to Colonia but to wherever you last docked. (If it did work like that for uninhabited systems there would be some interesting fast-travel exploits)
The majority of people on this particular expedition once past Sag A* will probably have docked at the new station to be built there, of course.