Microsoft made two Office-related announcements: one, you would get to try out universal versions of Office on the technical preview of Windows 10. Two, Microsoft is currently working on the 2016 desktop suite for Microsoft Office, which they note is "best suited for a PC with keyboard and mouse."
All you would need to do to try out the apps is sign up to the Windows Insider program and download the latest Windows 10 preview.
On your mark, ready, upgrade
Only the Word, Excel and PowerPoint apps will be available to try and they will be downloadable from the Windows store from within the Windows 10 environment. Office for Windows 10 is Microsoft's touch-optimised version of its software and is made to render well on smaller screens such as phones and tablets.
Microsoft promises that Office for Windows 10 will "truly" be the same across devices, making it easier for developers to extend and integrate with Microsoft's Office apps.
Windows 10 phones and tablets will have the new Office apps preinstalled for free and downloadable from Windows 10 for PCs.
As for the desktop suite, Microsoft says it is likely to be out by the second half of 2015. From the screenshots released by Microsoft, it seems that Microsoft has streamlined the interface of the apps giving the famous Ribbon a cleaner, sleeker look.
Microsoft has not as yet given out pricing details but it's expected that Office 365 subscribers will see the updates rolled out to them automatically, which was one of the incentives Microsoft offered to get people to sign up - no need to pay extra for each upgrade to keep up-to-date.