The problem with a Traveller TV Series is it has missed the X-Boat and now can only Jump-1 to Sharki (Antares 1936).
Dark Matter was practically Traveller right down to the Megacorporations, Killjoys is just as good a go at the concept, and The Expanse (whilst in a TL 9 universe) has some classic Traveller plots. All of these succeeded in being different enough to not be Firefly 2, any subsequent series will just be seen as a pale imitation or ripoff of the ones before it (even though we fan boys know better).
I'd still like to see it happen, though.