Saw two Alpha Trions at the new Müller store in downtown Dortmund that was opened at the end of last year. I bought one, the one other should still be on the shelf. Didn't see Alchemist Prime, but I'll be hitting another Müller store tomorrow.
Funny, I just found this wave out in Walmart Canada today, seems Alchemist Prime is harder to get or people really want it as I bought the last one they had.
POTP Wave 2 Prime Masters and Deluxes found in Norway as well, pictures in the Scandinavian sightings forum: Scandinavia Transformers Sightings
While out on a mini-toy hunt today together with TFW2005 member Nemesis Scourge, we found about a full case's worth of POTP Prime Masters wave 2 with Alpha Trion and Alchemist Prime at the Real store in Mülheim-Speldorf.