Not really. Khabib is in fact the second biggest star in the sport, recently retired and has one foot in the pool. It's only natural a scumbag like Dana White (also smart business to do so) would be trying to lure him back in.
On top of this the biggest star, Conor McGregor, has also been rather inactive, may retire sooner than later, and is a pain in the ass that knows his worth and probably bends Dana over at the negotiating table more than any UFC fighter in history.
The Rousey cow (no pun intended srs) is long dead. Brock is a desperation move and a one time trick at this point. GSP retired, Jones getting older, no real stars on the horizon and even a personality like Sugar Sean was recently exposed/shit on.
Short answer: Sort of.