If it’s going to be the premier air defense fighter for the PLAN carrier battle group (The J-15 will probably become the dedicated strike platform and EW platform like the F-18), far away from any other support when on deployment, you can bet it will have to have the best of everything the PLAN can get its hands on. It will almost certainly be on par with the J-20, if only slightly scaled down.
An export variant, with less sensitive systems, and a reduced price, will probably be made a viable soon after for offer to Pakistan, and possibly for Iran, which needs to counter the UAE F-35s (especially once the WS-13E and/or WS-19 are ready, so China can be the only supplier).