I didn't like the idea of a blu/sam hybrid class at first. But thinking about it more, it would be pretty interesting. However I don't think that will happen as BLU is one those really iconic FF classes and will most likely be it's own class. My prediction was and still is that there will be 2 classes released at the start and one more later in the expansion, despite what was said about releasing classes mid expansion, I still get that feeling that they will. The first 2 will be Red Mage of course, and most likely Samurai ((tank)) as the second.

The 3rd class to be released later is either going to be BLU or DNC, my hunch is BLU though. I think SE is having too much fun tweaking the healers we already have to introduce another healer making their way on the dance floor (badum-tisss?)