Webinar: What's new in Vaadin 8?

For custom column compontents, you can use the
build-in renderers
or build your custom one. The directory has some addons with more renderer implementations, hopefully migrated to support 8. As mentioned in the webinar, the components in grid allows you to have any component in any cell in the grid, and is being currently developed for 8.1.

The
editor fields for each column
in the grid’s inline editor can be customized.