Thank you for the reply.
Since I have not received the approal/deny letter, do I need to do anythng now, like contacting USCIS, or just wait until April? Because my mom is leaving in April any way.
In case USCIS comes back with a deny letter, or the new I-94 expiration date is before April, and my mom still leaves in April, will that have negative impact when she comes back in the future?
Thanks!