There are some SpaceX alumni at Relativity.

I would speculate that their eventual end goal is to be bought out by either SpaceX or Blue Origin. A small space launch startup focusing on one technology isn’t going very far on its own, and few other companies would have an interest in their approach.

Another possible exit scenario is to be acquired by ULA or another cost plus contractor who is grasping at straws to become competitive against SpaceX's reusable vehicles.