Personally, I don't know the previous test. I asked a friend of mine who took feast 2 years ago just to give you an answer
There are 2 new tests. One of them is a visual memory test. Computer shows you some images, one after another, then give you easy math questions (really easy, don't worry about them), and shows you the images that showed you previously, with 8 similar but different images. You have to choose the right one. Exercising on visual memory might help you in this test.
The other is a spatial orientation test. You need to be fast in that module, but I think its the easiest module of the entire feast test. Don't know how to explain that one