The Tunnel: Sabotage starting on Sky Atlantic 12 April. I haven't checked to see if and when it might find its way to Australian TV.
This from TV Tonight:
ABC has been forced to delay plans to screen the second season of The Tunnel next week, after SKY Atlantic postponed it following attacks in Brussels.
SKY was planning to premiere the second season, which includes a plane crashing into the English channel on April 5th. It will now launch on April 12th.
ABC has been impacted by the move, now screening Utopia episodes at 9:30pm next Thursday night.
It is yet to announce a new date.