I can see Lambeau being domed with in the next 20 years, I don't see it as their decision though. I can see when a new commissioner comes into the NFL, who isn't quite like Goodell and is seeking on improving revenue since by that time revenue may be sliding, a way to increase ticket sales would be doming up all the stadiums, or at least putting retractable roofs. It would be deemed for player and fans safety from getting too cold, being injured, slipping on ice, or some BS reason.
Green bay will fight it, but will ultimately lose, with the reason being another stock sale would of been done and a bitter taste would be left in the other 31 owners mouth, and belief that the Packers have been grandfathered into too many rules. This would be why Lambeau would have a dome on it. If it was up to the players it would be domed, but up to the former players it as sure as hell would be open. Packers are a traditionalist team, they played through the dirt, grime, sleet, snow, and rain and made history **** it.