Same here. This happened to me earlier in the day. I logged off for most of the day, then tried to play again and was in an instance, was kicked, then stuck at retrieving characters.
this may be an issue only concerning certain hardware issues on our side, since it appears the servers still running for others, hopefully they figure it out soon
If you were in the middle of a mission when you lost connection to the server...do you lose everything you've done in that mission? Will the mission be aborted? Can you do it over? Because I am not amused...