Other posters are correct, no official info til 5 weeks out. If you can find historical refurb info for the last 12 months it may give you an idea of what's already been down for major refurb 'recently'. If you see that a 'must do' ride has had a lengthy refurb within the past 12 months it's less likely (but not impossible) that it will be closed in this coming 'off season'. For example, we all know that PP was closed for a lengthy update and refurb this past spring/early summer. It's pretty unlikely (but not impossible) that it will be closed for refurb any time soon. It's no guarantee, of course.