The original Top Gun became a box office smash largely thanks to its exciting aerial sequences, which were carried out with the cooperation of the Navy, and featured real ace pilots executing real dogfighting maneuvers.
Val Kilmer has expressed his desire to return as the character of Iceman, though nothing has been confirmed on that front.
The Navy is very different now than it was in 1986.
Top Gun: Maverick may successfully achieve a heightened sense of drama that the original simply was unable to attain, but it remains to be seen if that will lead to a legitimately entertaining experience.