I wonder what PLAN will do with all the OG J-15s once J-15B (and J-25) take over on flight decks? The airframes aren't old and should have plenty of life left, unless they've been flogged hard.
Nothing … they can remain in service for several years on board the Liaoning & Shandong, maybe will get an MLU including the J-11BGs AESA, but otherwise I don‘t expect any major changes anytime soon.