These won't be used for public transport. In the UK they're a relatively cheap source of turbine flying (for owners who fly less) and which is done on a permit to fly.
Quite a number from the last batch went to the Ukraine.
As John mentioned, this current batch has been around a while. The sellers are not aviation people but a vehicle disposal outfit who've made money disposing of MoD assets. Their contract,
AFAIK, is up for renewal this year.
My guess is that the market (European at least) isn't quite ready for another 10-12 civil Gazelles but - you never know.