I met the case officer today and was told the following.
"I can confirm that I have agreed an extension of time with the Agent to 6th May 2015 to allow them to submit additional information. Once this information has been received a further 21 day consultation period will be carried out so that those who want to can comment on the additional information. I am not aware of when the information will be received so an additional extension of time on this application may be agreed at a later date."
It therefore follows that no recommendation will be made until mid June at the very earliest with the Spatial Planning Committee looking at it after that.