Yep, I don't know what Trump will lead US into (and I don't think it will necessary be worse than any other president in this day and age). But any mainstream candidate from GOP or Democrat will certainly lead to more TPP.
It doesn't much matter who is in the role, as it is exactly that: a role.
Even without conspiracy theories regarding secret cabals that rule the world from the shadows, there is overwhelming inertia baked into the system itself.
A fairly recent study that I very vaguely recall pointed to this fact: the conclusion being that it is extraordinarily difficult to effect change within systems that are essentially self-perpetuating.