Line Of Duty could be set for at least two more series.
The hit BBC One drama is currently airings its fifth season on Sunday nights at 9PM.
A sixth series has already been commissioned but creator and writer Jed Mercurio is looking even further ahead.
He's revealed hopes of signing a deal for a seventh series already, following big viewing figures for the latest episodes.
Mercurio said he hoped to know if series six would be the last or not so he could plan appropriately.
In an interview with The Sun newspaper, Mercurio explained: "We’re looking forward to a conversation with the BBC once series five has aired . . . about whether there is an appetite from fans to have more, or whether there’s a feeling the show is coming towards its natural arc.
“That conversation will be very specific, which is whether series six will be the last, or whether the BBC would be prepared to commission a seventh so we can approach series six knowing it’s not the last.”
For now, the fifth series of Line Of Duty continues this Sunday night.
Stephen Graham (Save Me, Taboo, This Is England) stars as guest lead in the new episodes.
He plays John Corbett alongside Rochenda Sandall (Girlfriends, Broken) as Lisa McQueen - two pivotal figures in a deadly organised crime group.
They join regular series lead stars Vicky McClure (DS Kate Fleming), Martin Compston (DS Steve Arnott) and Adrian Dunbar (Supt. Ted Hastings).
The latest episode saw a huge audience of 7.5 million viewers in the TV ratings, up 300,000 on the week before.
And that's before those watching on catch up via BBC iPlayer are taken into account.