the contracts are negotiated between SoA and SoE are completely separate so there is no guarantee that a game that appears on one region will be in another region as well.
...that said:
1. a lot of times the same game appears in both (it's probably somewhat publisher driven what ends up on ps+)
2. bioshock is already on the US ps+ (just released last week)
3. outlast is coming to US ps+ next month.








