When will she lay again???

Rosie had been broody for around 4 weeks (I hadn't let her sit on any eggs) and for the past week has been going back to normal.

When will she start to lay eggs again?  She is a pekin bantam and is just over 3 years old, but was laying eggs before she became broody.
Her sister Albertine is a mum of 2 chicks at the moment, but Albertine was laying eggs too before she became broody.
The 3 other hens (we have 20 chickens altogether, but these 5 are the eldest) who are just over 3 years old, have more or less reached 'menopause'.
Maybe Rosie won't lay again because of her age and the break from laying she's had?

Thank you  

Thanks Kelloggs 

Mine who went broody for the first time and didn't sit on any eggs started laying about a week after she returned to normal

Hopefully Rosie will start to lay again soon. Thank you for replying carolbriar 

That's great news.