Hunter is not presently planned to be fitted with SeaRAM; and there has been no indication that the RAN is interested in RAM in either configuration, and not in Arrow, nor CAMM, nor Patriot (which is not maritime adapted). Nor in anything else which does not fit in a Mk 41 launcher. Of course that might change but there is no present suggestion that it will. It certainly also has no current interest in 76mm, nor it would seem in 57mm. There was, and may remain, interest in a 40mm with programmable ammunition but it doesn't seem like any decision to purchase in imminent. My suspicion is that all of the maritime development people are presently working flat out on a frigate decision which is supposed to be made this year and, given the short time frame they have been allowed for that (and it is short, people), they have little capacity for anything else.
WRT Arafura, sea trials and subsequent activities were apparently completed shortly before Christmas. Like every body else, the Navy prefers to allow its people to not work over that period if they can avoid it; and standard Navy leave periods tend to finish at the beginning of the second week in January. So the guys and gals probably got back to work a couple of weeks ago. While I no longer have any insight into the Arafura program, it wouldn't surprise me if she transited to the West and commissioned there in the next few weeks.
