They have specifically mentioned that we should not contact for status unless and until the standard wait time is crossed. I have dropped an email asking them to clarify more on the 'AR' status and want to know if there is any process in between. They have not replied back.
In other thread (SINP 2020 Express Entry ITA Please Join Here), one person has mentioned his experience, his profile remained in 'AR' status for about 8 months.
It looks like they are processing the applications based on the NOC code, people who have submitted later than us have received the nomination.