This official news post is copied verbatim from the Old School RuneScape website. It is copyrighted by Jagex.
This update was added on 9 January 2015.
This update was added on 9 January 2015.

We have just put up a developer blog for the Grand Exchange in Old School. We want to know, once and for all, how the community feel. Make sure to read the developer blog and to let us know what you think.
The Grand Exchange, as well as all of the other content talked about in the developer blog, will be poll next week.
Head over to our forums to read the Grand Exchange developer blog.
Mods Archie, Ash, Ghost, Ian, John C, Mat K, Reach, Ronan and Weath
The Old School team