Khabib has a simple gameplan. We all know what it is before the fight starts, and it works everytime.
1. Taking his opponent down, 2. Holding him there, 3. Unleashing ground and pound
1. Taking his opponent down:
a) Shoots for a low single from the outside
b) Presses his opponent up against the cage and goes for an inside trip OR will lock both of his hands behind his opponents legs and lift them up and take them down
c) Clinches his opponent so he can do a hip toss or take the back for a suplex
2. Holding him there:
a) Often uses a leg lace to bind his opponents legs so he can't move, pushes them against the cage and punches them from that position
b) If he passes the guard he goes for a crucifix with punches as well
None of his opponenets to date have been an elite wrestler or an elite BJJ fighter. They have mostly been "well rounded" fighters who are good everywhere but great no where. He has fought 2 elite strikers in Edson Barbosa, and Conor McGregor, but their elite strikering was completely taken off the table when the takedown was established.
The only notable wrestler he fought was Al Iaquinta... But he's hardly considered elite. He has never fought an elite BJJ fighter. Al was a college wrestler, and while Khabib was having success early on, he was really struggling with the takedown in rounds 3 onwards. He was forced to stand with Al after many unsuccessful wrestling shots.
I would really like to see Khabib against Gaethje, who was an established college wrestler who can strike as well. I believe Gaethje could shut down Khabib's takedown and force a standup fight. If not Gaethje, I would like to see him face Ortega who could shut down his ground game. There's no way someone as elite on the ground as Ortega is going to let him hold him down.
No disrespect to Dustin but his game is a "well rounded" jack of all trades MMA game, and against Khabib that's not going to work. To beat Khabib you need to be either an elite wrestler who can stop the shot and force the stand up, or an elite BJJ fighter who won't be held down and can either threaten submissions or get back to their feet.