Yes, there are changes coming soon in Brave rewards. This Brave Help Center article has more information: Earning BAT in Brave Rewards
Posting three Community topics discussing the change and related information for reference. There are others out there but I think these were the most active.
[Sweeping Changes] Brave Rewards Can Only be Earned in a Verified Profile
posted Dec 9
Is Brave fully removing the ability to earn Rewards for unverified users?
posted Dec 10
PSA: Rewards changes in 1.48 (currently in Nightly)
posted Dec 13