The Navy hasn't actually announced this. So far information is coming only from a political Congressional member. [What is a Congressional member doing announcing this?]
Here's the first articles on it:
Austal wins JHSV contract Marine Log - New York
The Navy has decided to award the Joint High Speed Vessel contract to Austal USA. The award wasn't included in today's Pentagon contract announcements...
Shelby: Mobile, Ala.'s Austal USA wins $1.6 billion contract for ... al.com - Birmingham, AL
Austal beat out two other teams that had submitted design contracts for the so-called Joint High Speed Vessel, a Navy-Army program for a high-speed...
Austal in Mobile wins $1.6B Navy contract al.com - Birmingham, AL
JHSV design contracts earlier this year. Officials with Austal's competitors, Bollinger Shipyards of Lockport, La., and Bath Iron Works, a General Dynamics Corp. affiliate based in Bath, Maine, said they had not received word...
The Alakai (A615) and 'Koa' (A616) served their purpose as construction demonstration projects. Didn't hurt to have a couple of retired Admirals oversee and report on the operations of A615 over the past 6 months.