Yeah... rumours were circulating that the next Titan would be announced at SDCC. Maybe with Omega Supreme still yet to be released, it was better to be promoting that one, without dividing the attention of people between two upcoming Titans.
I hope the Seacon set isn't at the Titan price point, as those six would add up to AU$200 on their own, and Titans haven't been at that price since Metroplex. It would be an extra $100 just for being in the one box.