Bladed spokes would not likely be Ti, in my experience (very limited).
And actually, once rolling, it doesn't matter what the spokes are, if they work.
Ti spokes are somewhat more prone to breakageonly from what I've been told.
I bought a wheel with them; the seller told me it was "when," not "if" they would break. None did.

Shimano played a little with Ti parts around the 9-sp era, too.