Beyond took half what Into Darkness took at the UK box office. Did appallingly at the US box office.
Apart from CBS Action which only transmits in God awful quality SD, Trek hasn't been on UK terrestrial TV since CH4 made a pig's ear of showing Enterprise over 12 years ago.
Most Star Trek fans are in their late 30s, early 40s, or even older. Most of them have other things to think about.
I maybe making an incorrect assumption here, but I saw quite a few photos from Mission New York at the weekend which showed large empty spaces of venue with not many people. I know this event was only a few weeks after Vegas.
For those of us in the UK, we have one supposedly official and massively over priced convention run by a known scammer, with a guest lineup so poor, it's got many fans foaming at the mouth. And the Star Trek Exhibition was put all the way up in Blackpool. Yup, really accessible for the rest of the country.
There isn't the demand for Trek anymore. People don't care. CBS don't care. Trek is dead. If Discovery gets cancelled at the end of the first season before no one's paying to watch, we'll all have seen it coming.