CO's Rev. Mgmt. keeps tweaking things and making these goodies from MSP available again.

As of a couple minutes ago, these appear to be bookable:

AMS via TXL, out 5/1, return 5/3,
TXL ~ $395-400, out 5/1, return 5/3
HAM $425, out 4/11, return 4/13
HAM $430, out 5/8, return 5/10

We're all stocked up on MR's, you might want to see what you can do from your origin of choice with these destinations & dates.