Well duh, people who think the one they have revealed sre gonna be the only ones in game are dumb. Obviously they want to keep secret.
This just mean either we have 3rd tier of vocations (look at the "frame" of the icons, there are obvious "progression" in the decoration design from simple, to decorated to gilded).
These vocatins probably are those unlocked specially trough quests/the meisters or it is simply combining all the colors (red, green, blue produce white, and in line with sword , bow and staff)
Whether we have 3rd tier for every combinations is doubtful but it's obvious there are at least 5 more (advanced green, advanced yello, green/yellow, et )
Who knows if purple and pink have its own basic vocationa