There’s a thread on the UK Climbing forums about a possibility of setting up a new climbing wall in Cambridge.
I’m not sure how much finance these people have behind them, but they are having a public meeting on the 17th of October, 8.00 in the Friends Meeting House on Jesus Lane.
For a city with a large climbing population and in the middle of flatland, Cambridge is very lacking in indoor climbing facilities. There’s Kelsey Kerridge, which is not worth mentioning. Stowmarket wall is about an hours drive away and is fairly reasonable except not very high.