Generally the "old" content is removed. Last time around, we were asked what we would like to keep on the site. I do not know if that will be done this time around. We have lost lots of "old" data from years ago when purging/updating has taken place. The system can only hold so much data...so, if I were you, I would copy what you have found useful and put it in a safe place.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
