So I contacted Nestle to see whether there's any chance of a return to production for Vice Versas, and pointed out that there are at least two petitions near or over 1000 people (the one on this site and one linked via the Facebook group) and there are over 4000 people in the Facebook group too.
Sadly the reply I got was the stock one that they must have used before (it's basically the same as what's written on wikipedia). Here's the reply:
"Thank you very much for your email.
Unfortunately we had to withdraw Vice Versas from our range as they were expensive to make and sales were relatively low. It was a difficult decision for us because we are proud of all our products and do not like to disappoint our consumers.
We hope you can understand why we took this decision. Thank you once again for taking the trouble to contact us."
Ah well...