AEW as a promotion won't die unless Shad just completely cuts Tony off fully. As long as Tony gets any kind of money he'll keep it going even if it downgrades to an indie with no tv deal but for now even a declining AEW has more viewers than TNA, MLW, or NWA so AEW can float along for awhile longer. The big thing will be if Tony can keep throwing around money for expensive music licenses and giant contracts for wrestlers. That may taper off pretty soon.