The Tentacled One
Pioneer—a new nonrotating format featuring cards from Return to Ravnica and forward—is coming to tabletop and Magic Online events very soon!
Remember that time they announced a new format called Modern that totally wasn't going to replace Extended? Well, now they're announcing a new format called Pioneer that totally isn't going to replace Modern.
But seriously, this is concept is an idea a lot of people have been floating for a long time. I don't think we can really tell what it will turn into. But it's coming, apparently.