It looks like you're new here. If you want to get involved, click one of these buttons!
The original DarkFall game will be about the same size and UW, here is a good comparison with WoW on the size.
http://www.youtube.com/watch?v=hcCOPDpha5I Read the comment the Uploader made. What bothers me is the Sprinting time is so short for Darkfall and it seems like there is unlimited sprint. I hope there is not Unlimited Sprint in Unholy Wars.
As for the World itself, WoW may be a lot smaller but every single zone looked different and was very detailed. Unholy Wars does not look like it will have the same diversity of enviornments that WoW had, no really exotic locations, just Grasslands, Snow, Volcanoe Ashlands, Deserts and Wasteland. The world itself also looks very empty, I wanna see huge cities that are alive with people (NPC's).