Apparently, USG has accepted the first production lot.
I wonder if SAAB in Sweden has been approved as a second source.
I would hope, eventually. There is a huge demand for HIMARS, and once the GLSDB is proven, there will be a huge demand for them too. I think the only part Saab makes is the electrical/mechanical interface between the LMT produced rocket motor and the Boeing produced GBU-39 and GBU-53. For now there are a large number of “spare” rocket motors that can be freed up by removing the old DPICM warheads. Both the SDB-1 and SDB-2 are available in pretty large numbers, and include some interesting capabilities, like Home on Jam, Home on GPS Jam, Laser Guidance, Radar Guidance, etc.