For AR, there are 2 new types of questions. The first one is where they give you a sequence of shapes and you have to guess the next one in the sequence. The second one is a little hard to explain. If you go through the official UKCAT mocks, they're right at the end. I believe only 3 or so are the new styles.
In my (and many others') UKCAT, I didn't get any of the new style questions. If you end up getting them, you'll get a small number. I found the new style questions a lot easier actually and it'll probably be similar in the exam.
VR isn't really new per se. They've just increased the number of comprehension-style questions where you have to read the whole text and pick the best statement. The questions are usually like "From the passage, the author most likely agrees with which of the following?" or "What is the tone of the author?" or "Which statement is best supported by the passage?" These questions are a lot harder than the true, false and can't tell ones. I got 530 in this subset this year but 640 last year. My other subsets went okay though so I didn't have a crazy low average. It seems a majority of people are getting 800+ in DA this year so that made up for many people's low VR.
Anyway, I got 3-4 sets of T/F/C in my actual UKCAT. Apparently the best strategy for the comprehension questions is to skim read effectively. Try increasing your reading speed and skim through the passage to find out which statement is the correct one. I got away with reading the text carefully during my practice but in the real exam, this method didn't really work as the paragraphs were really difficult to understand and kind of dull - I got economics-y stuff and two on government/royal family. While some people might enjoy reading about those, I really don't.
I think it's partly because they use difficult words and phrase things so horribly that it doesn't really make sense to me. The length of the passage was the same as what I had practised though. Go on the UKCAT thread and go through some of the posts. Some people have done really well and might be able to offer tips.
Good luck!