There will be leather cases and sleeves for the Pro.They mentioned a leather case and a leather folio for the 12. Nothing for the Pro or Pro Max. Although it’s hard to believe they would release leather cases for the 12 and not for the higher end Pro models.

Apple introduces iPhone 12 Pro and iPhone 12 Pro Max with 5G
Apple today announced iPhone 12 Pro and iPhone 12 Pro Max, features 5G and advanced technologies for users who want the most out of iPhone.
www.apple.com
- MagSafe Charger, Leather Wallet with MagSafe, and iPhone 12 Pro Silicone Case and Clear Case will be available beginning Friday, October 16. iPhone 12 Pro Leather Case will be available beginning Friday, November 6. MagSafe Duo Charger and Leather Sleeve will be available at a later date.