where do you think the 3rd combat unit will be to get j20? can't wait to see. At current production rate, maybe we will know within the year?
That's a good question and even more, where will it be formed.
Cornering your guess "maybe we will know within the year" I'm not sure since we simply have no hard prof for the J-20's current production rate. Based on the countless internet rumours about 4 production lines capable to build 48 per year I would say they must be already somewhere ... but fact is even if we have reports concerning Anshan since February 2020, they only get them now.
My conclusion - even if some won't like it - is simply: The production rate is not that high as some assume.
Anyway I think it is indeed likely that by year's end we have some hints towards a third combat unit ... on the other side the recent row of closing down of blogs and Weibo accounts seem to speak against this hope.