So you can pirate the shit out of people who go to null.
Will still need a wardec mechanic of sorts or it'll be too easy to just "hide in highsec". You seen anything yet about the ability to just drop in and out of populated servers for safety's sake though? It sounds like it'll be very segregated.
You won't have 'manual' control over servers as far as I know. It's all going to be under the hood and they want it all to look as single shard as possible. The server issues are super complicated and i haven't had it quite ironed out lately yet since I'm not up on everything. It's going to be halfway between single shard and multiple instances, basically. IE their big spaceport on Earth or wherever they spent 2 years modeling of course can't handle 10,000 human players (there are only so many landing pads for example) so the server AI will do it's best job to keep you grouped with folks it think should be around you. As you move away from hyper populated areas this will decrease.
Something like 90% of the traffic you see in space will be NPC anyway - it won't be like eve where you have a local and you can see who is around you, they are really going for the first person universe 'immersion' thing for the most part. You see a ship in front of you, you will have no idea if it's humans or npc in control until you hail them or bring someone on board.
In Space Sharding - it's going to be sort of like boxes within boxes of servers. The space around you is sort of invisibly divided up into multiple zones of space and as you fly through and as things get populated they get further subdivided into invisible new servers that get spooled up. the 10 ships pew pewing around you might be on the same 'server' and the 30 in the distance might actually be on a different one but you won't notice.
Large capital ships etc will have their own sort of persistent server bubbles.
To my knowledge there is no 'despawn' mechanic related to combat - if you log out especially during something dangerous your ship is still going to be there much like EVE - although I think it will de-grid after x amount of time. I think the despawn is also related to sec status and size - giant capital ships for example will never despawn (no logging off your supercarrier), and dangerous areas I think you have much fewer recourse as well. IIRC your character might even stay logged even if you log out in these situations - might go take a nap in the bunk of your ship or something so you can still be shot while you leave.
Wardecs and org combat are absolutely a thing. All sorts of merc corps and good/bad/neutral orgs already formed and populated on the forums and some are already on the live servers practicing. One thing that will be nice is they are integrating much of these activities into orgs and solo work. It's going to be way way easier for your 'merc' corp to check the local job board for escort, protection missions etc. and for all the other things, along whit solo work.
They want individuals (human and npc) and groups to easily be able to hire and post job requests for missions and contracts, and for humans and ai to take these jobs. From hiring a crew gunner to hiring a bunch of ships to escort your space hauler. They have spent a lot of time having most of the universe populated by millions of AI that are out there doing their thing; hauling minerals, doing jobs, transporting things, pew pewing, etc totally independent of the human players. If you hit that NPC convoy hauling minerals then those minerals DIDNT get to their destination, prices might go up at their destination site for example - you will absolutely be able to effect things.
They are -really- trying to do 'dynamic' job creation so when you confirm that contract to escort the space trucker it's also maybe generating a 'job' for pirates (ai or human) to try and hit your convoy.
Bonus - much more shades of grey for 'sec status;' for example if you are in pirate location x, they might have different set of laws than pirate group y and what goes in their space, it wont be a universal 1-0 type of rating. Gotta know where you are, what's legal there, and how in you are with the locals.