H4 Extension Still Stuck

Hello,

My H1B extension with my current employer was initiated in August 2019 in Premium and was also approved at the beginning of Sept/2019. After which, my son’s H4 extension was filed. We went for his bio metrics in October/2019 and completed it successfully. But since then, I am not seeing any change in status for his application. On USCIS website, for his case, I still see status as “Case was received”.

Is it normal? Is there something I can do to find out what’s going on with his application?

Further question - If I change my job from my current employer to new employer in mid-2020, again at that time as well does H4 processing will take same amount of time? Can I start with new employer if H4’s processing is still in progress?
Also, if I decide to travel to India in Dec/2020 and my son’s H4 application is still in progress during that time, can I still travel to India with him and then get his H4 visa stamped directly in India even though his case was in process here at USCIS?

Thank you for your help.

Regards,
Nil