Sorry bananafish what I meant was that if people who are transgender have established parity with those diagnosed with cancer, their fertility treatment will likely be provided longer than other groups.
The NHS will likely maintain options for those diagnosed with cancer (it would be politically difficult to announce cuts for this but also, the numbers involved- especially for female patients is relatively small) I've linked at the beginning of the thread to a campaign started last year which shows how disparately the protocols are applied.
So, in reality, should the challenge be successful, it seems more likely that those who are transgender could end up being a group with preferential access.
I think the postcode lottery of NHS funding of fertility treatments is especially appalling.