I doubt it. Most likely, the names of Xerneas and Yveltal were derived from their names. They are too odd for names, in my opinion, for it to be a mere coincedence. Who knows, though, what runs through the minds of GF. Perhaps you could be correct. Perhaps it could be the others. We may never know.
Pokemon SoulSilver FC: 1335 1407 6427 When Life gives you lemons, throw them back and demand cookies instead! -Official Sandslash of the PMD3 boards