It comes as figures for last Sunday's final episode of the third season showed that almost one million viewers tuned in.
The season pulled an average audience of 953,000 but even more tuned in to see Darren's assassination.
The production team and RTE bosses are currently finalising the details of series four -- and an autumn broadcasting date is on the cards.
Commissioning Editor for RTE Drama, Jane Gogan said that although viewers were devastated that Robert Sheehan's character Darren won't return next year, it was important to stay true to the drama which was written by Stuart Carolan.
"Stuart hasn't got a whit of sentimentality within him. It is a meticulously researched series," she said.
"He brings a great and variable experience having come from current affairs. You can't be sentimental when you go into any kind of drama."
Ms Gogan said that the secret to the success was from those behind the scenes.
"It comes from the hard work, immense creativity and ingenuity of the many people involved throughout this production led by (writer) Stuart Carolan, James Flynn, Suzanne McAuley, Steve Matthews and David Caffrey," she said.
"A superb cast, brilliant writing and direction under the umbrella of good producing has brought a deep connection with the audience for the last six weeks."
The drama has now been sold to Scotland, Australia, South Korea, Singapore, parts of Asia and recently the US.
"It is incredibly important for us to get our shows outside Ireland -- we want them to be available for the diaspora but also a much wider audience," Ms Gogan said.
"With Love/Hate you are laying down a marker, it is widely talked about in the television circle and people very aware of Love/Hate at this stage."
Writer and creator Stuart Carolan said that he was blown away that the Irish public has "come on this journey" in such numbers.
"From Clondalkin to Caherciveen they've stayed with us and this is because of world class Irish actors like Tom Vaughan Lawlor and Robert Sheehan," he said.
"Tom Vaughan Lawlor as Nidge has created this fiendish monster that is the Nidge Weasel and made him his own.
"Robert Sheehan is a young actor who brought such a special and unique charisma to Darren. It was hugely difficult to say goodbye to him and I understand the audience's loss at his demise."