Just want to add -- I feel it's the ability to seamlessly 'hop' the same character around that will be detrimental to long term gameplay.
- People will grind out faction standings and change of system ownership in closed groups, where an opposing group has no real way to push back, other than to PVE grind themselves -- you would be missing out on a golden opportunity for PVP player warfare and conflict here as players will want to have certain factions in control of systems they live in.
- People making money in closed play, then PVPing in open, or using closed play to get out of sticky situations (such as wanting to trade to a station where some surly pirates live) -- forcing people to deal with the realities of who lives in the universe and their intentions creates real, meaninful stories and gameplay, and conflict.
It will rapidly become no fun if everyone can just 'solo out' of a sticky situation..
Again, people who want to play in solo/closed group, can just roll a unique character in those modes and play away to their hearts content.
anyways, that's my suggestion
I'm sure some people won't like it 
- People will grind out faction standings and change of system ownership in closed groups, where an opposing group has no real way to push back, other than to PVE grind themselves -- you would be missing out on a golden opportunity for PVP player warfare and conflict here as players will want to have certain factions in control of systems they live in.
- People making money in closed play, then PVPing in open, or using closed play to get out of sticky situations (such as wanting to trade to a station where some surly pirates live) -- forcing people to deal with the realities of who lives in the universe and their intentions creates real, meaninful stories and gameplay, and conflict.
It will rapidly become no fun if everyone can just 'solo out' of a sticky situation..
Again, people who want to play in solo/closed group, can just roll a unique character in those modes and play away to their hearts content.
anyways, that's my suggestion