Wiley did purchase several unpublished works from Wrox, but this was not one of them. After Wiley made it's purchase of Wrox assets from their liquidator, it is my understanding that Apress purchased the remaining books. You may want to try their site to see if they have it now and actually plan to publish the book. If not, then no publishing company purchased the book and its rights are still with the liquidator - leaving its publishing in question for now.
Hope that this is helpful,
Wiley Publishing/Wrox Press