A number of people (including Meltzer) are now speculating that WWE will ultimately move NXT out of Full Sail University and take the Wednesday night show on the road, and air in larger basketball-sized arenas. Visually, the difference last night was striking and was about as abrupt as comparing a RAW broadcast versus NXT. For a casual viewer who has flipped onto NXT, there's little difference in look between that show, Ring of Honor, or Impact Wrestling.
That said, would NXT look any less minor league if it were to go to 14,000 seat arenas? Even if the buildings were filled to capacity, NXT's production motive is to turn off the lights and make it look like an intimate setting. That nullifies the bonus of having 14,000 in attendance. In fact, it makes it look like the company could not sell out the arena. If you can't see them, what is the purpose of booking the larger venue?
Some shots of a sold out NXT Takeover. Again, you would not know that there is a capacity crowd:
How is this any different to Herb Abrams turning off the lights to hide the fact that he drew less than 1,000 for his UWF PPV, or WCW turning off the lights in the Superdome after they only drew 3,000?