I believe in the interest of fairness to new players at launch we should have at launch
1. Compete wipe. No knowledge, books, Xp, money, rank etc should be allowed to be kept.
2. Minimum rank before previous DLC purchased can be used. It would not be fair to new players to face P2W ships at game launch. Players should be held to a minimum rank before any of the DLC content can be used at launch.
This I believe would foster a more balanced game in the beginning and is best interest of fairness for new players.
I can not see the benefit of allowing experienced players more advantages over new players beyond the hands on experience they already obtained by being testers.