1/30, according to your posting, after you send in the addtional document they finalized it today.
Mid Feb might be when the quota being reached for EB2.
Both mine and happyxie's cases are not being touched yet, there is no LUD on mine at all. Even though our PD is current, but we both were informed, in my case, in email, and happyxie's verbal converstation on phone, that there is some issue about the visa quota.
Not trying to piss off people here, fact is fact, we alway have to wish for the best but prepaire for the worst.
If there is any evidence of newly approved 485, EB2 class, for Chinese citizen, from now on till the rew visa bulletin come out, , that will prove the assumption is faulse.