The CW has officially rebooted Roswell and Charmed for the 2018-19 season. Per Deadline:
The CW has made the bulk of its first pilot-to-series orders of the season. The network has ordered two reboots, Charmed, from Jane the Virgin creator-showrunner Jennie Snyder Urman and CBS TV Studios; and Roswell, New Mexico (fka Roswell) from The Originals scribe Carina Adly MacKenzie.
A late entrant in the race, Julie Plec’s new project set in The Vampire Diaries/The Originals universe, Legacies, also scored a series order. I hear it came down to that and the Supernatural spinoff Wayward Sisters, and the network opted to go with Legacies based off a script by Plec and encouraged by the solid ratings for the final season of The Originals. Wayward Sisters is not going forward.