Found it, and I think you are correct.
Will I receive AAdvantage program rewards for prior million mile thresholds that I achieved in Dividend Miles before my million mile balances were combined together?
If the combination of your Million Miler balances allows you to reach a new million mile level when the programs combine you will receive the benefits of that level. Any benefits you would have received for prior million mile levels will not be awarded
Still looking for the SWU's though. Are they listed somewhere else than the Account Summary/Balance Summary?