Roadmap for Google Apps for Work: http://whatsnew.googleapps.com/
Roadmap for Microsoft O365: http://office.microsoft.com/en-us/products/office-365-roadmap-FX104343353.aspx
Roadmap for IBM SmartCloud: <nul> <404 error>
Roadmap for IBM Notes client: <haha>
Roadmap for IBM Domino: <I would tell you, but then I would have to kill you>
Without a roadmap, we have no reason to believe ...