In reply to doris:
I'd book a package deal with a cancellation policy, I wouldn't go DIY right now. I'm off to 3 vallees tomorrow. Booked as a package with full cancellation, so 3 weeks ago it was looking like trip cancelled for a full refund, but a week later it was back on. On the other hand I've booked two trips over the last year but traveling independently. I lost a chunk of the money and have some vouchers that I'm still trying to use.
As to whether you should book now or wait for a deal, that was always a gamble. Booking last minute has worked well for me in the past, but it's a different world now. I'd be inclined to think a lot of people will want to be getting out there after a 2 year layoff.