How I think the scenario will go:
For a period of time - maybe a few weeks to a couple of months, a station will be actively under attack from Thargoids and in Evacuation Mode.
All players who are docked at that station will log in to find it on Red Alert, station services unavailable, and the game will automatically return their ships to the surface and disengage landing restraints while the inside of the station rages with fire and damage and alarms blaring.
Once you leave the station, you can't get back in and you'll find the station in a battle with Thargoid ships. The Thargoids will *only* be interested in the station and both will be exchanging fire. You can get involved and fight the Thargoids if you wish, but that will just aggro them against you and you risk a rebuy (at which point you'll respawn in the besieged station to be forcibly launched again). If you try to defend the station against the Thargoids and manage to destroy them, more will jump in and you'll constantly be facing multiple Thargoid ships.
Basically a lightly interactive scripted scenario, and you can't *actually* save the station from being under siege and return it to normal. All you can do is experience the frantic red alert status, be kicked out of the station, and jump to supercruise to escape.
The station will never be fully destroyed, and if you never log in through this period only to return after the station is no longer under siege, you'll never know the station was under threat at all because everything will have returned to normal (maybe excepting a few persistent residual damage effects). All player ships will be safe from harm as long as they're not logged in; no assets will be deleted.
