I hope they are better at putting together a roster than the Jags are  
 
 
But seriously that will be a huge factor in how this plays out.   Of course they need a good TV deal to kick things off.. 
They will obviously have good in-ring wrestling.. 
But it's also how they manage this roster.  I think it would be unwise to throw money around at WWE cast offs like a Ryback.  He's not going to move the needle at all and you can sign someone like him for cheap. 
I think they should spend their money on guys like Penta or Fenix because they probably wouldn't have to break the bank for the guys and they would be easily marketable.  I could see Penta merch becoming a thing.  Some guys with unique looks and who do cool shyt,  that's what a casual wrestling fan would want to see.