Mr. Hat,
I have sat and passed the "aptitude" tests three times now (twice trying to get into cadet programme) over the last three or so years, and I couldn't see any difference in the structure of the tests last week. Possibly some of the pattern sequences were harder, or maybe I am more stoopid now. The example questions on the QF site would suggest there is a new section, but there isn't. Perhaps they are looking to change it soon?
exmex,
Studying for IQ tests may not increase your real IQ, but it will improve your test results. Often tests will scale down your IQ if you've done a test before, for the simple reason that IQ tests are the same as any other test - study for them, and your results will be better.