Strictly is back in the autumn and we'll have a new face on the panel after Len stepped down last year following more than a decade on the BBC series.
Darcey has revealed that she and fellow judges Bruno Tonioli and Craig Revel Horwood have been left in the dark by show bosses on who the new judge would be.
She told the Sunday People that producers would only reveal the new judge "at the last minute".
And she added: “It’s all gone very quiet all of a sudden on the rumoured names front. I’m nervous – it’s a good nervous, not bad nerves – but, yeah, I’m getting excited.”
Darcey went on to praise Len, saying: “He is incredibly clever, brilliant at what he does. He’s an institution.
"He has his own Len Goodman academy, totally successful at everything he does. It was a real pleasure to be with him.”
As well as replacement for Len's place on the panel, his role as head judge is also up for grabs.
Darcey said she didn't know who it would be going to but suggested: “I suppose maybe it would be Craig – but he’s a bit of a producer now. He produces a lot behind the scenes.”
Strictly Come Dancing will air on BBC One in the autumn.