I think you'll find that this is a web page put up by the interested parties in 2013. The link is: http://waitrosevanhage.co.uk/index.html
I only came across this by accident early last year so plans have been well afoot for some time. The website was never advertised and few if anyone who I have spoken to knew about it. I only discovered it because I like putting different strings into Google - quite surprising what turns up sometimes. If you read the whole site you will realise just how old this is and has never been updated, no reference to the actual application, no reference to the withdrawal and no reference to the current and revised (!) application. Can't think why they bothered in the first place because as a PR exercise it completely fails.
However this is confusing the situation because this is not connected to the Bircherley Green Regeneration (!) Plan as being submitted by Wrenbridge. If you look at their site: http://bircherleygreenregeneration.com/
you will see that the timetable is also much askew. Rumour has it that their planning application is due shortly. However Waitrose have made it very clear that that have no intention of staying in Hertford whether this goes ahead or not. So we have the possible scenario that East Herts will again instruct Planning to recommend refusal at Van Hages to encourage Waitrose to stay in Hertford, who do not wish to (see their documentation accompanying the application by CPRE on behalf of Van Hages). They could shut their doors for good in 2016 when their lease expires and continue scouring the bowels of Hertfordshire looking for a suitable site - see their background information on all possible alternative sites which have been rejected for one reason or another. So, if you're breathless from reading that, then you could be faced with no Waitrose at all.
With all my contacts in various seats of power I don't know anyone who has the slightest idea what is going on - apart from Mr Ruffles who told me last year that it was a race to planning. Whatever that means and he usually talks to me in code anyway.