Wow, I've actually read two of the books this year.

I agree about the yet to be released books. In fact, I would say it makes more sense to only include books which have been released for at least six months, so that enough people can have read them to have an opinion on them, otherwise they should be held over till next year's vote. I suspect a lot of people will vote for favourite authors, based on previous books, even when they haven't yet read the book on the voting list. For example, I will at some point read Andy Weir's new book and, based on how much I loved
The Martian, I expect to enjoy it but I'm not voting for the new one when it hasn't even been released yet.
I wonder how they choose the initial books to go onto the list - is it based on the books listed by members or just chosen based on the preferences of the people who run Goodreads, or maybe even just chosen randomly?