Q: Will Lotus notes traveler also be gone? Will Outlook replace that as well? Will we have to do anything to switch that over?
A: IBM Traveler/Mobile.usaeast.org will also cease to work on your migration date. Apple iOS and Android based devices will need to setup the outlook app to receive emails.
Here is a link on How you can setup outlook on your mobile device – https://office365training.usaeast.org/m/82538/l/1032788-how-to-setup-the-outlook-app-on-your-mobile-device