Let's Encrypt Wildcard SSL Certificate

Hi there WPMUDev

I just want to inquire as to the Let’s Encrypt Wildcard SSL certificates for subdomain seeing the NS DNS records are now pointed to ns1.wpdns.host, ns2.wpdns.host and ns3.wpdns.host (still propagating). Will the Wildcard Let’s Encrypt certificate automatically work or is there something we need to do/action from our side first?