In a group interview with Josh Greenfield and Nora Moletta, Blizzard has revealed that there are no Wrath-Era servers planned, but they are willing to listen to feedback.
Click Here for the Full Interview Recap at Warcraft WIki
This might come as a surprise to some players who were looking forward to having a permanent wrath server, being one of WoW's most popular expansions together with Mists of Pandaria.
However, throughout many Classic interviews, Blizzard has made it clear over and over again that Classic is driven by the community and they are listening to feedback about what the community wants.
. Read more on wowhead.com