.... Nice bit of detective work Jonathan!
If the OM Special Announcement on 8th February includes this Macro lens (very likely but not 100% certain) then by now many retailers will most likely be confidentially aware of the price level.
Some photographers here such as Alby
@ajophotog are very Macro/Micro orientated but I am much more Macro/
Close-up orientated and so achieving distance from my living wildlife subject is important and so the new 90mm (180mm equivalent) Macro lens is not a must-have. I get satisfactory (for me) close-up results with my 40-150mm F/2.8 PRO + MC-20 and even my 150-400mm TC PRO and especially when able to Focus Stack onboard camera.
SOUTHERN HAWKER (Aeshna cyanea) by
Robin Procter, on Flickr
BEAUTIFUL DEMOISELLE (Calopteryx virgo) by
Robin Procter, on Flickr