I don't know if anyone else has heard this, but there is a rumour going about that the new Harbour Master would like to keep the summer speed restriction in place for the whole year.
Certainly there is no change for this winter and from 1st October until 31st March the restriction is removed for all areas apart from the 'quiet areas' and, believe it or not, the main channel where, I understand, the 10 knot limit still applies. Whether anyone enforces a winter 10 knot limit in the main channel I do not know, but I have my doubts.
Mike