Those Outlook subscribers who are using the full-fledged app on a daily basis can attest that it certainly could do with some more polish and de-bloating. Presumably, Microsoft will leave the essentials like the e-mail client and Calendar integration, stripping unnecessary functions and simplifying the client’s options to only the most widely used features.
Last year, Microsoft removed the Outlook e-mail client app’s ability to sync calendars with the Facebook, Meetup, and Evernote services, while the app has other very useful functions like the ability to categorize events or contacts which will probably be transferred over to the Outlook Lite version as well.