Hey there,
The plan is to keep working on those anti undermesh features for the Isle of Siptah until they are ready to be made available in official servers.
Closing the thread as it has derailed into a repetition of other topics discussed plentifully in other threads, which are borderline in conflict with our community guidelines:
https://forums.funcom.com/t/conan-exiles-community-guidelines-please-read/54375
Thanks.