I know that an escape route was planned down to Argentina in case Germany lost the War, as they did eventually. The escape route was by U-Boat for the top ranking officers and a few others. The whole thing was costing Millions and it was all sanctioned by Jaun Peron. He told them they could live in Argentina anonymously . That is one of the reasons the Nazi's nicked as much of the art works and gold they could get there hands on, to pay Peron. The Nazi hunters got quite a few of the High Rankers down there.
Yes there are still millions missing. It's supposed to be in the Swiss Bank's but he Bank's will not reveal the account numbers of the Nazi's that opened them. If this is true then the stuff is just lying there unclaimed.