Content will not be migrated so users should take steps to move any content they wish to keep
We would like to remind current wiki users that content will not be migrated to the new service. Users should save any content they want to an appropriate place. We are currently looking at options for a replacement service.
Suggestions for saving wiki content
OneNote in Office 365
An Office 365 Sharepoint site with Wiki
Sharepoint sites can have pages added to them very easily using the app part ‘wiki page library’ . You have to have created a site first. This is what you are looking for if you want to add that app.