Dalston Junction Eastern Curve

Being young I was not aware of previous railways into Dalston Junction. Also I haven't personally been to the new Dalston Junction Station.

So I decided to research it.

While doing this I came across this picture. (7th Picture down)
www.abandonedstations.org.uk/Broad_Street_line_4.html

Are there any plans to make an eastern extension to the North London Line towards Stratford?

Thanks