Not being able to have multiple series with their own y-axes on the same chart is a dealbreaker right now.

Equivalent functionality in jquery: http://demos.telerik.com/kendo-ui/bar-charts/multiple-axes

Option to position the title or labels outside the chart. When you have negative values in the Y axis, the title is positioned inside the chart near the 0 value axis and not at the bottom of the chart.

Be able to turn off Keyboard Navigation for Kendo Component for Angular 4. (Not just for buttons)

Sometimes, our app may certain key down registered for other events but Kendo's component's keyboard navigation can't be turned off easily and will take over our app's keydown.

For now,  we have to write wrapper for every component that we don't want keyboard navigation like this:
http://plnkr.co/edit/yBAvnQ63yg9Y0REMcnRS?p=preview

Allow the placeholder text for the date picker to be customized. For example, some may prefer "MM/DD/YYY" to be displayed instead of "month/day/year"

   I see Kendo Window widget is not available for Angular 2 , so we are ending up using jquery with Angular 2.  We couldn't find this component it in road map also. Please let me know is there a plan to release kendo window angular 2  in near future?
Thanks

When do you plan on releasing the Color Picker?

Any plans for a UI Query Builder that uses the Data Query component?

Similar to the DialogService, adding a toaster module / service to show short message on the screen. As hint, look at the ng2-toastr node module.

Spreadsheet control as a separate component, or Grid control updated for AutoCOmplete and drag fill capabilities

The new calendar and date picker input components are great, but they are missing a significant functionality which has been available for a long time with the jquery calendar date picker -

The navigation is very basic and does not allow high level of years navigation - it requires monthly scrolling. This is very limiting for users who need to select a date between wide ranges. 

I would like to see Gauge components will be supported soon,

Any plans to implement the listview with Row Templates?

In current version of Kendo UI for Angular 2, there is no control for Menu or Navigation bar. It would be nice to have a separate component for routing

Add npm command installing all kendo-ui-for-angular components at once

so test won't fail if you don't add CUSTOM_ELEMENTS_SCHEMA

Make charts scrollable like how Google Charts implementing it: 
https://developers.google.com/chart/interactive/docs/gallery/controls#chartrangefilter

Our team would love to be able to use a Material theme, similar to the theme found in Kendo JQuery.

Reference implementation - the ASP.NET Ajax RibbonBar (http://demos.telerik.com/aspnet-ajax/ribbonbar/examples/overview/defaultcs.aspx)