Hi @DirtyPolarBear and @mix_master_rick,
Thanks for reaching out!
We are actively working with Google now on this matter. We were aware of the fixes the Play Store required, and we made those fixes in the MoPub 4.4 SDK release for iOS and Android which you can download from our GitHub page. We are actively working to update our Unity plug-in and expect to release an update for it before the end of the month.
Google has not made us aware of any deadline where apps would be rejected. As such, we are connecting with Google to get on the same page and establish a go-forward plan jointly to ensure that our mutual customers are not negatively affected.
Thanks!