An alleged Dell roadmap showing XPS laptops in shipping, development, or concept stage has been acquired by the Dutch technology website Tweakers. The roadmap is dated from February 2018 and includes concept ideas for computers such as the XPS 15 7500 "Fiorano", the XPS 17 7700 "Stradale", and a dual-screen machine with the codename "Maximus".
https://www.notebookcheck.net/Leaked-Dell-roadmap-shows-concept-plans-for-XPS-15-7500-XPS-17-7700-and-the-mysterious-Dell-XPS-Dual-Screen-Maximus.419782.0.html