orange wrote:
Will the cameras be clockwise only, or in both directions?
Clockwise only. It is still a 70 limit anticlockwise, although as that section includes the notorious right-hand entry sliproad at Junction 25, you do wonder whether that might be reduced too at some time in the future

orange wrote:
Was the limit only extended clockwise, or was it extended both ways?
The limit was extended about half a mile to the north, towards Junction 24, but the original southern boundary remains.
I believe all four of the deaths mentioned in the article occurred after the original 50mph limit was introduced. One was believed to travelling in excess of 70; another hit a car stationary in lane 3 after hitting the central reservation on an otherwise empty motorway. I recall one involving a car full of youngsters returning from an all-night rave in Wigan - draw your own conclusions...
The extended limit was the result a campaign by the mother of one of the victims to get people to slow down in plenty of time for the bend. "Young people will drive above the limit, there needs to be much more warning" is a (rough) quote of hers in the paper at the time.
No doubt when RTTM delivers three years free of fatalities it will be claimed as a great success for cameras.
The bend
is unusually tight for the motorway network but can easily be driven at 70 if you know what you're doing. I see no need for anything more than a prominent advisory limit.