Maybe a remnant from an earlier draft? Probably nothing but if you recall the way the CG face renders were lined up in the 2013 trailer at the end, they implied some sort of connection between each character in some way, and Ravus was shown there opposite Cor, same way Iedolas was opposite Regis, and Noctis was opposite Stella both for obvious reasons, and Ignis was opposite Verstael likely due to them being the "intellect" side for Lucis and Niflheim respectively, Gentiana was opposite Prompto likely because of his official description mentioning his fondness for women, and Gladio was opposite Ardyn, but all we could infer at the time was that Ardyn was second in command to Iedolas or a guard to Iedolas, which we knew Gladio was to Noctis. It's thin I know.
Cor is the general of the Lucis military the Crownsguard, and Ravus as the High Commander is the general of the Niflheim military, both are referred to as "Shogun" in Japanese, so maybe that could be something?
Or like mentioned above, could just be another use of a Lion reference, which is pretty common in FF. Alba is latin for white, so Ravus's weapons name basically means White Lion.