I personally would be let down if they add Samurai in this expansion compared to blue mage. It doesn't fit with the Ala Mhigo theme and would be better suited in an Othard/Doma expansion along with geomancer.

No new races and only 2 new jobs makes for a sorry excuse of an expansion. SE knows about datamining and have trolled dataminers in the past. Here's hoping they are doing it again with those SAM files.