Lenovo could be launching a new ThinkBook Plus upgrade featuring a color touchscreen tablet display within the keyboard deck instead of opting for an e-ink display on the lid like the current iteration. Specs and launch dates of the upcoming ThinkBook Plus are not currently available.
https://www.notebookcheck.net/Intriguing-Lenovo-ThinkBook-Plus-leak-reveals-17-inch-display-wide-touchpad-and-second-screen-with-stylus-but-no-e-ink-screen-indicated.576484.0.html