From what we know this would be impossible as we all play on the same back end servers - even if you play online solo; in a group with friends; or part of some super-group (like All pilots) then you're still using the same back end systems. There is no distinction.If there is to a be a separation between PvE/PvP it must be a complete separation.
This is impossible with the current mechanics. You have to remember that this isn't EVE in so much that you can completely dominate one part of the galaxy. In order to keep lag down, and other resources, the game will instance you. (32 is the bandied number at the moment) This means if you're in a region of space helping the NPCs to blockade it from the enemy and you're player 32, the next player to join will be in a new instance.A planet is under blockade. I'm part of that blockade and, with others, preventing other players and npcs bringing supplies through. You hop into PvE mode (you can handle the npcs let's say), fly through the blockade care-free and completely destroy the balance of play.
Thing to remember - this isn't EVE 2.0 whereby you can have 100s of players in 1 zone, it's Elite 2.0 that you can play with your mates. The fact that you can find new people by virtue of being online in the all pilots is incidental.
From where I sit my preference would be:I'm all for finding solutions that don't involve splitting the user base, but if there's to be a dedicated PvE mode, it should be exclusively PvE.
- Normal (PvAll)
- Co-operative (PvE only)
- 1 life mode (hesitant to say what it's called as some, sadly, react to a name)
However each "mode" would still use the same back end servers - there isn't distinction and what you do in 1 affects the others, you just can't see them. (Think of the other groups as NPCs in your galaxy)