""When you send Form I-140 application to USCIS, you can also send your I-485 application at the same time, as a concurrent filing of Form I-485 with Form I-140.
The benefit of I-140/I-485 concurrent filing is the eligibility for EAD and Advance Parole. The biggest benefit is those whose unlawful presence has start running and may be subject to 3-year or 10-year bar unless the running of unlawful presence time is stopped by filing I-485.
By filing I-485, they will be able to stop running of unlawful presence even though they cannot remove the period of unlawful presence before filing I-485. IF you have already filed I-140, you may file immediately I-485 attaching I-140 Receipt Notice.
For I-140 and I-485 concurrent application, the USCIS will process the I-140 application and I-485 application separately.
Your I-140 will be first adjudicated as separate from I-485, and the USCIS will issue receipt notice as if I-140 was filed independently. Before your -14o petition eligibility review is completed or I-140 is approved, the I-485 application will remain on hold.
The USCIS confirmed that the Service Centers will not process adjudication of EAD and Advance Parole in the I-140/485 concurrent filing cases, unless the Service Centers complete the review of eligibility of I-140 petition or thorough adjudication of I-140 petition. The procedures of such review or adjudication of I-140 will be as follows:
Denial of I-140 petition without even issuing RFE if the applicant is statutorily ineligible. If this happens, the Service Centers will also deny I-1485, I-765 EAD application and I-131 Advance Parole.
RFE is issued if the evidence of eligibility is not included at the time of concurrent filing. This is a situation where insufficient evidence is submitted and the Service Centers are unable to determine eligibility of I-140 petition.
Once RFE is issued such, processing of I-765 EAD and I-131 Advance Parole will remain on hold until the requested evidence is received. Additionally, the 90-day EAD adjudication requirement under the USCIS regulation will also stop running and it will run again as soon as the requested evidence is received.
If the USCIS Service Centers determine that the I-140 petition is eligible and the proper evidence for determination of eligibility are found in the filing, the Service Centers will issue EAD and Advance Parole. ""
From the above, I understand that they are waiting on the adjudication of 140 application before they issue EAD or AP.
Hopefully the 140 is not denied, in that case I think there will be no LUD change. The Gurus may correct me if I am wrong.