Leanne is currently enjoying domestic bliss with fiance Peter Barlow (Chris Gascoyne) and his son Simon (Alex Bain), but Jane told This Morning that Leanne shouldn't get used to it.
She said: "At the moment we're seeing her in an almost ideal family situation, she's become a mum of sorts and she's very close to Simon. But I'll give you a little teaser as to say that all is not going to run smoothly for the rest of the year."
Jane revealed she wasn't even sure whether Leanne and Peter would make it down the aisle.
"I don't know, we might, we might not, but I really hope we do because I love working with Chris who plays Peter and little Alex who plays Simon, so I hope it comes good in the end, but there's a lot of drama along the way," she said.
But Jane said that, as an actress, she was looking forward to tackling the "brilliant" storylines.
She said: "Every time I've come back [to Coronation Street] they've brought [Leanne] back bigger and better so I've had a great time."