New web parts for your modern communications in SharePoint Online

FYI, just saw a demo of what the team is building for multi-column, and when available, I think you'll like what it brings to your layout options - many choices, and easy to back out of layouts as you try and apply them; will work for existing one-column pages, and new ones you create. Keep creating News and we'll try to keep up with how you want to broadcast your message :-).