indeed already known since some time, but I’m still not sure if there are really already two more flying prototypes at Huangdicun?!
Shilao said on the 3 April podcast that there are multiple functional prototypes. But we still don't know how many.
Everything considered, I wouldn't be surprised if the J-35 program has been fast-tracked. After all, 003 could enter service as soon as late 2024 (though early 2025 is more likely IMO). Given the PLAN's frustrations with the J-15 and the need to standardize equipment, it's possible that the PLAN gave up on the J-15T and switched focus completely to the J-35 instead.
J-35 entering production at the same time as 003 becoming operational would not be good enough. If existing CVs are any indication, the 003's dimensions should let it pack over 50 medium fighters (excluding other aircraft). Even if the J-35 entered LRIP today, they would need to produce 15 airframes a year to fill out 003's peacetime complement by 2025.
Realistically, the best outcome would be LRIP starting next year, and 20 operational units by the end of 2025. Unless they really, really rush this program, I don't expect to see 003 with a full complement of 45-50 fighters until 2027.