I hear they actually plan on turning it from a single player RPG into a MMORPG... With this being more the setup to the world it takes place in, sort of like how KOTOR 1&2 lead to SWTOR I guess.
Kingdoms of Amalur: Project Copernicus - PC - IGN
It would seem most want it to stay a SPRPG from what I have read online though.
Also, there is more DLC coming later in the month, sounds interesting!
http://www.ign.com/wikis/kingdoms-of...nd_of_Dead_Kel