Although nothing is official yet and all the information comes from an APK teardown by 9to5Google, it looks like Gboard will soon get the Smart Reply feature for notifications, GIF making, and a new media keyboard that can search items like images and articles.
https://www.notebookcheck.net/Gboard-6-9-will-bring-smart-replies-GIF-making-media-keyboard-features.279042.0.html