Got a couple of emails from Disney stating that you can now sign up early for a 3 year Disney+ contract and save 33%. I just signed up and the price was $140.97 plus tax. (Total I was charged $152.60)
To get this offer you must become a D23 General Member (which is free) by signing up at D23.com. The offer may not show up in your account to redeem instantly and may take some time to become active. Mine took a few hours before the offer was active. After this offer was available I also received a email as well, stating I could sign up.