xiaobaitu will suggest you file new eb2 485 (not transfer) anywa

because she does not care about how the people could be delayed by mutliple 485 filings. But I would suggest you to do a transfer from Eb3 to Eb2 instead of filing a new one. I admit that you do need to put some effort in it but it worths it. We Chinese should save each other. When hundreds and thousands of Chinese applicants do this USCIS will care about this, they can not just ignore transfered cases.