I know this location well... the following may be of interest:
http://www.astoft2.co.uk/hants/hoplandsmemorial.htm
War Memorial: Farley Mount German Airmen (WMR-21495)
Kings Somborne Junkers Ju 88A-1 Memorial
Ju 88 A-1 21 August 1940, Kings Somborne [Archive] - Luftwaffe and Allied Air Forces Discussion Forum
(Note especially the last comments on the page).
Now, when I read your post, I instantly had a feeling that another stone has been placed alongside the first, with the crew names on, but I can't find a record of this online... I'll go there today, if time permits, and have a look.