We'll have an interview with new series lead McIntyre and the show's creator Steven S DeKnight later this week, but first, here's a Q&A with the scheming Lucretia - actress Lucy Lawless. Speaking to Digital Spy and other journalists, Lawless dropped a few hints about what to expect from the new season...
Given how Blood and Sand ended for Lucretia, were you ever worried that you wouldn't be back?
"Yes, they shot it both ways - one with me absolutely still and one with my finger twitching! I think the decision was made posthumously - they thought 'Let's keep her alive!'"
Lucretia doesn't get involved in the action scenes as much as Xena did - do you miss it?
"Not even a little bit! [The men are] sweating and grunting and they're covered in filth, and I'm asking somebody to peel me a grape - what's to miss?!"
Have you missed working with John Hannah this year?
"Viva Bianca is a great actress, a great friend and a great colleague. Craig Parker plays her husband Glaber and he has us all in stitches - he's absolutely the funniest man any of us have ever met, [tied] maybe with Bruce Campbell.
"He's Bruce Campbell funny - he's that good an energy to have on set. In fact, with all of the Romans, the nastier the character is, the nicer the people are. The Romans are so charming!"
How did having a new Spartacus (Liam McIntyre) this year change the vibe on set?
"It's a little bit like going back to the pilot, and rebranding the show - getting it back to the show that you all came to know and love as soon as possible.
"Liam's got the heart of a lion. It's a big ask, of course, for anybody to step into the shoes of somebody [else] who's so indelibly owned the role. But he will make it his own.
"And all of your old favourites are back - Ashur (Nick Tarabay) is badder than ever and I love working with that guy! He's a tremendous acting partner. So all of your old favourites come back, minus the lovely John Hannah."
How does Vengeance tie in with prequel series Gods of the Arena?
"Gannicus comes back and he brings his own rock star, bad boy quality. He was cast for that reason, because Dustin [Clare] can bang chicks, drink alcohol and act like a bad boy, and you just love him! He's a rock star, y'know?"
What hints can we take from the title Spartacus: Vengeance?
"I'm getting my own back! The dogs of hell are going to be unleashed! It's all about me, it's all about Lucretia! No, y'know, Spartacus and his buddies are on a mission to give the Romans a good caning. That's their mission, but I've got my own little plan."
Will we see Lucretia interact with Spartacus and his men?
"No, my character, mercifully, has nothing to do with that dirty bunch - I'm so happy! They're off in the mud and the cold, and I'm sitting in the parlour making evil plans!"
Can we expect a few cat-fights with Ilithyia?
"I'm not saying there aren't, not saying there are. Let me just say it's an extreme relationship borne out of extreme adversity."
With Batiatus gone and Crixus on the run, where does that leave Lucretia?
"That is part of my vengeance - my absolute hatred of Crixus, who took the only thing that Lucretia's ever loved. But I do enter into a kind of unholy matrimony with someone - not saying who!"
So can we expect a new romance?
"I know I put out that thing about her 'unholy matrimony' but there is only one man for her and there only ever will be, till the day she dies and beyond. She's wholly Batiatus's woman. I do like that about her, because it redeems her and it kind of explains a lot about her actions."
"That's a bad thing - there's a lot of vengeance in that. Her husband and her baby - the nuclear family that she lost - remains the key to all of her actions, from here on."
Will we see Lucretia clawing back some of her power this season?
"Survival is almost a mode of operation, it's a moment-to-moment jeopardy for her - [it's] tenuous, with no male support. In that society, a woman was extremely vulnerable, so you have to live off your wits."
Will we be introduced to any new characters?
"You get to meet more of the rotten Romans - they're the people that you want to see fall. And you get a whole lot of new rebels - what can I tell you about them? [It's] just more beefcake to love, more Romans to hate - same old, same old!"
How does the fan reaction on Spartacus differ from something like Xena or Battlestar Galactica?
"The demographic is suburban housewives and young men - I've never had the young men before! A little bit on Battlestar, but I've really noticed it here. We went to Europe last year and met a bunch of Australian kids on the Ponte Vecchio in Florence. The girls were going 'Oh my God, you're Xena!' but the boys were like, 'You're on Spartacus' and then they got excited.
"That was very interesting to me, because I've never had the sniggering attention of boys before! But it comes with a little bit of respect, which is very nice. It could be all T&A (t*ts and arse) sniggering, but it's not - it's got a little bit more curiosity than that."
Any final thoughts on Spartacus: Vengeance?
"This season is enormous - the cast is huge, the sets are incredible. They've really gone way out on a limb to fulfil the story. It's bloody enormous!"
Spartacus: Vengeance begins on Friday, January 27 at 10/9c on Starz in the US. Sky1 airs the show in the UK.