The plot will apparently be used by bosses to decide if the ITV soap will keep Michelle Collins on in the role of the new Rovers Return manager. The Sun claims that viewing figures have fallen since the former EastEnders star, whose fake northern accent has been criticised by some viewers, arrived on the Street.
If the scenes alongside actresses Jane Danson and Alison King do not win over viewers, the paper suggests that Collins faces the axe in a Christmas plot.
"This storyline is Michelle's last chance to win viewers over," a source said. "She will be mown down by Carla Connor, who drunkenly drives her car into Barlow's Bookies as a plea for help with her booze battle.
"Stella will be rushed to hospital and Leanne will realise she wants her mum to live and for them to have a relationship. If that doesn't get the figures up, there is no hope for her and they will kill her off at Christmas."
> 'Coronation Street' team deny Michelle Collins backlash
> 'Coronation Street' star eyes "meaty" Stella scenes
Meanwhile, it has also been suggested that producer Phil Collinson will leave the show next year, due to his position "fast becoming untenable".
Responding to the claims, an ITV spokeswoman commented: "Ratings for the first six months of 2011 are up year on year. We have also been the number one show across all channels more than any other programme so far this year.
"ITV are extremely pleased with the work of Phil Collinson and his production team. The channel is also delighted with audience reaction to Stella's arrival on Coronation Street and with the storylines planned in the coming months."
> Corrie boss 'demands new storylines for 15 characters'
> 'Coronation Street' announces Tyrone love interest casting