Going by the date that @Kyno has shared, something to do with KOTOR would make sense even though I initially thought it was jango.
If you assume that it’s showing a character from behind, on the left side there seems to be a bit of a drape from the shoulder. If we assuming this is a half cape, the red light could be a saber.
Malek wields his saber on the same side as his cape. I don’t know how to post pictures but here’s an image to go by, just imagine he’s facing the other way...
http://princebalto.wikia.com/wiki/Darth_Malak