Actually its only 20 days until Shadow comes out.
You could download SureShots's modmod if you really want to play a unique Svartalfar civ now, but it isn't compatible with the latest versions. She didn't see the point of updating it so close to the release of shadow.
Anyway, actually making a civ playable isn't hard to do yourself without the aid of any modmod; just open the CIV4CivilizationInfos.xml file (In the Civilizations folder in the XML folder in the Assets folder of the mod folder) and change <bPlayable>0</bPlayable> to <bPlayable>1</bPlayable> (and remember to save the file, of course

). If you have the latest version of excel, you could just open the editor file and change one 0 to a 1 there, and then export.
(Prior to BtS, <bPlayable> and <bAIPlayable> were instead found in the CIV4LeaderheadInfos.xml file. I believe this was changed because that would mean that you could begin a game as the Infernals or Mercurians when using unrestricted leaders. I actually assigned extra leaders for these 2 civs, among several others, in .22 and found that I could start as Mercurians/Infernals, and then still summon anothe rof the same civ, under their usual leaders. Both versions got free manes/angels.

)