Not necessarily, this was I believe published a few months ago and the new design of formation lights and wingtip pylon indicates that it’s most likely a J-15B.I can safely say the pictures which show the engine are all J-15T, not J-15B.
edit: blitzo beat me to it by considerable margin, kudos to him xd
 
				 
 
		 
			 
 
		 
 
		 
	 
	
