[tripleo][ptl]What is the future of availability monitoring in TripleO?

I've noticed that the availability monitoring integration in TripleO using Sensu is marked for deprecation post Rocky, but I do not see any blueprints detailing a replacement plan like there is for fluentd to rsyslog for the logging integration. Where can I find information on what the roadmap is? Is this a feature that will be dropped and left to operators to implement?