I've been following John Cramer's activities for about 10 years now. So I was excited to see that he has managed to get money to fund his retrocausality project. Here is a powerpoint about what the project is trying to test.
I personally don't expect the experiment will find evidence of retrocausality-- mainly because I think it would violate free will. I do hope it will shed some more light on the nature of quantum paradoxes.