I agree with Nick that there is lots to discuss, but unfortunately you can guarantee that the "heads in the sand" brigade will not want to discuss some things - either rationally, or even at all!
Sadly, I think Mr Philips is being a bit premature asking for feedback on what people want for next year's races. The inquest on the deaths and injuries on the mountain has yet to be held, as far as I know, and I would have thought that there is a distinct possibility that the verdict could affect how, or indeed if, the races are run again.
If the weight and speeds of the motorcycles is permitted to continue increasing, then surely the authorities must look at where and how near spectators are allowed, and also to consider whether the experience of marshalls is enough to outweigh their declining reaction time and physical fitness due to age?
When I look at the pictures of spectators on the bank below the Creg, and imagine a 1000cc motorcycle under full acceleration hitting a patch of oil, or suffering a gearbox seizure, how many would survive?
The 24 Hours of Le Mans (cars) very nearly did not continue after a tragedy involving spectators. The TT, in the event of something similar, would not. I would fight for the right of riders to take the calculated risks of racing the mountain cicuit, but when it kills unprepared spectators, that is a different matter.