The rumour (in the papers) last week, was that Sarah Ferguson had been invited to Balmoral as a step towards re-establishing good relations prior to the forthcoming announcement of Princess Beatrice's engagement to some chap whose name I can't recall.
Now the rumour has altered to that of marriage between Andrew and Sarah.
Personally, I quite like the latter rumour, because it's got a nice 'soap opera' ring to it - almost like an Eastenders plot line. And also because they'd have to work out what her title would now be ("Do we give her the old one back, or make her duchess of somewhere else???")