Are Carla Connor's family secrets about to be exposed?

There's a Coronation Street spoiler in today's Sun that reckons Carla is going to try to seduce Frank Foster.  The paper says that Carla gets steaming drunk at her mum's funeral and looks for comfort by taking a taxi to Frank's house.   Instead Frank, played by Andrew Lancel, is the perfect gentleman - and takes care of Carla when she passes out from the booze.

Interesting though this sounds, I'm intrigued as to why Corrie are bringing in Carla's mum, even if it is just for her funeral. Could this be the start of bringing in more of Carla's family, including her much-rumoured brother?