Since it's quite a new spec I doubt you'll be able to guess what will come up because you only have 1 set of papers to base it off on, so even if you did say what came up last year won't come up this year (not always true btw) there's still a lot of topics left. Hate to break it to you but you're going to have to cover it all, or atleast cover the topics you aren't comfortable in at the very least