EastEnders viewers think Kathy Beale has given away the return date of former villain Cindy Beale, without her even realising it.
Cindy was confirmed to be returning last month, with The Mirror revealing actress Michelle Collins would be reprising the role - over 20 years after she was killed off off-screen.
Cindy was said to have died in prison during childbirth, but it's now known that for whatever reason she faked her death and has been alive the entire time.
No details have been confirmed about her return plot or when it will air, but it's thought she is returning with her ex Ian Beale.
How the exes reunited is also a mystery, as well as her whereabouts for the past two decades, with her trying to kill Ian via a hitman when she was last on the show.
Something Kathy said in the lead up to her wedding on Wednesday has left fans speculating there isn't long to go until Cindy returns.
She was discussing her upcoming wedding to Rocky, and told him and others who she wanted to be there.
Kathy said: "I want everyone there, friends and family... and it wouldn't be right without my son there too. I want Ian at the wedding."
Viewers know that Ian is returning to the soap this year after two years away, while he made a brief return in secret in December.
Fans also know that according to reports, Ian will return with Cindy - so if Ian does return on the day of the wedding, chances are Cindy will be there too.
The comment and talks of Ian coming back left viewers convinced Cindy would gatecrash Kathy's wedding, and that this is when she will be back in Walford.
Taking to Twitter, one fan said: "Ian is gonna turn up at Kathy's wedding with Cindy, isn't he?!!! Pass the popcorn! I am SEATED."
Another said: "Ian Beale name drop in today’s EastEnders episode! Eek!" as a third fan wrote: "Kathy wanting Ian at the wedding let's gooo."
It comes amid speculation Cindy could be the mystery ex-wife of newcomer George Knight.
The Knights recently arrived in Walford and George's past came under question, over the revelation that his wife was missing.
It's been revealed that George's wife Rose walked out on him and the girls when they were younger, around nine years ago, while her fate and what really happened has not been confirmed.
But new spoilers have revealed that an upcoming episode will finally confirm the whole truth, amid fans believing Rose could actually be Cindy in a twist.
A new episode synopsis for the scenes airing on June 22 reads: "The truth about what happened to Rose Knight is finally revealed."
Now, fans are speculating that this big episode could be the moment Cindy returns, regardless of if she turns out to be Rose or not.
EastEnders airs Mondays to Thursdays at 7:30pm on BBC One and BBC iPlayer.