This is purely my reading of the information currently on the UCAS website. No guarantees are given that any of this is correct. No guarantees are given that any of this information will not change. No-one should do anything in reliance on anything here without obtaining specific confirmation from UCAS that it works.
Minerva and the other UCAS helpers may wish to come in on these comments.
It seems that anyone who is rejected by any university can have a sixth (or more if they have more than one rejection) choice by de-selecting the university from which they were rejected and making a new choice from the following list by 15th January 2011:-
Anglia Ruskin University Aston University Bradford College Brunel University Canterbury Christ Church University University of Central Lancashire University of Chester University of Chichester University of Cumbria University of East Anglia University of Gloucestershire Harper Adams University College University of Hertfordshire Heythrop College University of Huddersfield Institute of Education Leeds Trinity University College Liverpool John Moores University
London South Bank University
University of Northampton
Nottingham Trent University
Plymouth College of Art
Roehampton University
Ruskin College
Southampton Solent University
Sparsholt College Hampshire
University College St Mark and St John
St Mary's University College
University Campus Suffolk
Teesside University
University of the West of England
University of West London
University of Winchester
University of Wolverhampton
University of Worcester
York St John University
It also seems that anyone with a choice at one of those listed universities can de-select that choice and select any university, whether or not in that list (seemingly including Oxbridge) for equal consideration by 15th January 2011.
One can only de-select and re-select on one occasion and so it would be sensible to do this only once one knows that one has received all likely rejections.
Only applicants who apply by 7th December 2011 will have the right to de-select and re-select and so anyone who has not yet applied to UCAS, whether or not intending to apply to one of the listed universities should apply by 7th December 2011.
Although I have referred to people de-selecting choices from which they were rejected the same is true for someone who has simply changed their mind.