https://www.gamespot.com/articles/deus-ex-franchise-will-live-on-but-dont-expect-a-n/1100-6458916/

Following a report last year that claimed Square Enix put the Deus Ex series on hiatus after underwhelming sales of the latest entry, Deus Ex: Mankind Divided, the publisher said the franchise will come back someday. Square Enix CEO Yosuke Matsuda also said at the time that preliminary plans for a new entry in the series were already in the works. Now, one of the leaders at Mankind Divided studio Eidos Montreal has doubled down on this.

Speaking to PCGamesN, studio head David Anfossi said, "Deus Ex is not dead; I confirm that."