Jacob Wolf has been the reason behind many of the leaks related to Overwatch league. A while back, he reported about EnVyUs receiving the Dallas spot in the Overwatch league. ofcourse nothing has been officially confirmed yet
by Blizzard and hence there are rising doubts about the veracity of this information. However he has confirmed that ENVyus are still the placeholder for the Dallas spot. It might be the situation that Blizzard is holding back the announcement in order to make a huge impact at Blizzcon 2017.
Seen a lot of questions about the EnVyUs deal in Dallas for Overwatch League. It’s still intact, will likely be announced with the others.
— J. Wolf @ #ESLOne NY (@JacobNWolf) September 13, 2017