The surprise plotline begins when Cindy, played by pregnant actress Stephanie Waring, meets rich Alistair Longford (Terence Harvey) at a party which is also attended by the McQueens. She goes on to work her charms on the new acquaintance as soon as she hears about his massive fortune.
Following the chance meeting, a romance between the pair quickly develops and Alistair proposes to his new love within a week. The couple then start to arrange their nuptials just as speedily.
Although he is a new character, Alistair already has a link to the show as he is the grandfather of sisters India (Beth Kingston) and Texas (Bianca Hendrickse-Spendlove).
Yesterday, the Hollyoaks cast filmed scenes in Liverpool for Cindy and Alistair's wedding day, which is to be a garish affair as Myra McQueen (Nicole Barber-Lane) insists on organising the occasion. The matriarch, who was responsible for the duo's first meeting at the party, threatens to tell all about Cindy's gold-digging ways unless she can be the wedding planner.
However, Hollyoaks bosses are keeping tight-lipped over whether the pair will actually tie the knot on the day. According to the Daily Mail, a shock revelation from one of the guests in the church could change everything.
The storyline - due to air in August - is expected to lead to Cindy's temporary departure from the Channel 4 soap as Waring is about to take maternity leave.
> Click here for pictures of Cindy's wedding day