The latest piece of salacious gossip (from Richard Harman, so probably some truth to it) is that Treasury now wants the LOSC vessel to serve as a replacement for NIWA's Tangaroa as well as for Navy's Resolution, Manawanui & Kahu, and that the Navy & NIWA will have to share it.
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source)
Quite how that will work is difficult to see: the LOSC vessel is supposed to be on stand-by as the first-responder to a regional natural disaster. How can it do that if it is deployed on some 3-month fish-fart counting mission to the Ross Sea?
I have said it before, but I really think the LOSC requirement needs to be met by multiple vessels (at least 2-3; Damen's MRAV series would be a good start), rather than a single vessel.