Investigate the options for exposing API for controlling the scroll position of the ListView.

The feature can be implemented on the different platforms through custom renderers:

Android: http://docs.telerik.com/devtools/android/AndroidControlsDoc/com/telerik/widget/list/RadListView.html#scrollToPosition(int)

iOS: http://docs.telerik.com/devtools/ios/api/Classes/TKListView.html#//api/name/scrollToItemAtIndexPath:atScrollPosition:animated:

UWP: ScrollItemIntoView()

Available in the R1 2018 SP release. More information: https://docs.telerik.com/devtools/xamarin/controls/listview/features/listview-features-scrolling

Add support for GroupKey of ListView to be complex object, allowing to display more complex information in the group headers.

Available in the R2 2018 release.

Listview iOS: expose option to control selection visual position in relation to the main content.

It will be very useful in scenarios such as grid layout with images

Add support for expand/collapse functionality for ListView groups.

Available in the R2 2018 release.

Implement OData support in RadListView

better way to gain performance using FastCell, take a look here:
https://github.com/twintechs/TwinTechsFormsLib

Add support for group footer

Add support for ListView item template selector.

Available in minor release 2017.2.0721. It will also be available in the R3 2017 release.

Add support for group aggregates in the headers of ListView