Microsoft released more details into the fabled Office 2013 today. Detailing what users should expect during the initial release and what to expect later on.
Microsoft stated that Windows RT tablets will be shipping with a demo version of the new Office Suite, but users can expect upgrades to come sometime after the initial release. Microsoft gave supplied a lot of information of what to and what not expect with the different version of Office. For deeper reading on the subject go here.
Source Office Next