Oh, come on.
3,000 pages maybe, but not 7,000 - that would be 7 books, not 2.
Also, there are main characters. Daenerys and Jon Snow will be there till the end, for instance (especially since they might be half-siblings - POSSIBLE SPOILER ALERT!).
The show has covered 1 book. That means there are 6 books to go. Since the average page count is over 1000 pages...