As Kaer has pointed out in another thread, there are currently no plans for RDF.
I think adding in RDF would actually be beneficial for the health of the server. Hear me out.
Many people that play private servers, specifically LK, play them because they are more fun, usually associated with being a little easier, or more forgiving.
I think not adding in a form of RDF would actually hurt long term health of server. Once most of the LK content is actually out, the lack of RDF will certainly turn players away from the server, but I don't think adding in RDF as it was in live is the proper option either.
Here's the comprise to help satisfy both parties.
1. Require a full 5 man group BEFORE you can queue for RDF. You cannot solo queue, and must have a tank, healer, and 3 dps roles in your party. The rest procedes as normal. (I think this is the preferred option)
OR
2. RDF works as it currently does in live, with the one exception that RDF DOES NOT teleport you to the dungeon. It will simply make the group for you.
I'm not completely opposed to not adding in RDF, but I seriously think it hurts the longevity of the server, and with how quickly bugs are being fixed, and how stable the server is, I really would love to see this server succeed long term.
I don't know how to add a poll, but if an admin could make a poll with option 1 being No RDF, option 2 would be the first option I list, and option 3 would be the second option I listed, while option 4 would be RDF in it's normal form.
Hope you guys enjoy!