Have stumbled upon this letter in the Telegraph from Lord Pearson - dated March 2005:
(i.e. before the French and Dutch no votes)
Sir - Your leading article (Mar 29) may be wrong to hope that France votes "No" to the proposed EU Constitution. If it does, Brussels is likely to respond by setting up another inter-governmental conference, "listening to the people" of course, which would render our own referendum redundant.
That IGC will then produce a new treaty, subtly achieving the constitution's aims, upon which we will not be granted a referendum, but which Parliament will rubber-stamp as usual.
Who needs a crystal ball when you understand how the EU political class think?