Zardnaar
Legend
Well, let's remember that Wizards isn't dependent on D&D for their profits. Their cardboard crack empire is vastly more profitable than D&D ever dreamed of being, even during the golden age of the '80s. It was M:tG that funded the purchase of TSR in the first place, and it's likely funding 5E development as well.
Hasbro still had to sign off on that decision, though.
DDI still brings in around 6 million a year as well.