£19000-£23000 Sterling (starting/loaded respectively)
I think the average salary in the UK is around £25k a year.... so to keep this affordable, I'd like to guess/assume it's going to be a bit below the average yearly salary in the UK. I base that on absolutely no facts. Just a educated guesstimate. It will also sit somewhere nicely in with it's rivals.
(personally, I'd like it to be between £15000-£19000, but that's false hope/wishful thinking)