The Pier J has reopened. The arrangement is just like the way it was in late 2021. The Wing F is reserved for those ex-HKG on Mainland-bound flights and transiting pax from flights arrived from the Mainland. The Pier J is reserved for pax transiting pax from other flights. Ex-HKG pax going somewhere other than Mainland technically can go to either lounge. See
https://www.cathaypacific.com/cx/en_.../the-pier.html
Ex-TPE pax now also have a lounge option. Though CX's own lounge remains closed, Plaza Premium is offered. See
https://www.cathaypacific.com/cx/en_...um-lounge.html