The fascination with a service connecting North and South Wales has gone on for any years, mainly by idealistic politicians who do not realise there is virtually no demand for such a service.
There was a public-money supported coach service. A complete failure.
There was a public-money supported railway service (which inevitably had to go round by Shrewsbury and Newport). A complete failure.
Someone attempted an air service a long while ago with a light type. The same result.
And if there was to be such a service, shouldn't it serve the largest town in North Wales, which is Wrexham. And that's a long, long way from Valley.