One single blog site doesn't officially confirm anything, its like with Xigbal surpposedly being named Xighar - BHK's suggested names, however do strongly relate to the game's theme - e.g Aros, Siru (Shiru) meaning fragment and Kazeki meaning connection/ zeki = part of XIII Order Kanji. Connection and fragment both relate to sora in such a way. But, so far all of these name suggestions are all unjustified and therefore unreliable