The speculation is that Hanwha has been engaging for future space for dedicated maintinence facilities on both coasts, with a desire to handle it under their banner as opposed to working with a dedicated shipyard as a partner. It aint like they can't afford it mind you.
No serious word on exactly who has been engaged. It seems like any talks have been speculative and generally minor. It does not seem like there has been much more than basic engagement, however it is something to keep an eye on.