I needed a hover event when items in the drop down list when selected with keypress(when the drop down list is opened). It made more sense to me that the change event had to be triggered because the value of the drop down list changes when you navigate with the keys.
So i ended up changing that piece of code in the script : telerik.list.js
if (!dropDown.isOpened())
trigger.change();
if (!dropDown.isOpened())
trigger.change();
to
trigger.change();
you could even put a a delay so that it does not trigger each time