I'm a little late on this because I haven't browsed the smite forums in awhile and there was no facebook notification about a new god being shown at all. He looks fucking bad ass. God daaaaaaaaamn.
Arachne was never a demigod, just some poor person who was better at something than the Greek gods. And Bakasura is more of a demon figure. But titans? NEVER I SAY!
That's my point. They've already added things to this game that aren't Gods or even demigods. Also, Vulcan isn't a titan. http://en.wikipedia.org/wiki/Vulcan_(mythology)