Last year, an artist named Joel Carlson uploaded a series of concept art for what he claims was a Arcanum mobile game being developed assumedly by Activision sometime in the early 2020's. In the LinkedIn profile for Joel Carlson linking to this concept art set, he elaborates that a sequel to the 2001 RPG from Sierra, "Arcanum" was going to be a "Mobile game aimed at ages 10+" and from the concept art file names in his portfolio, you can see where the story with this game was going to go:
Many years after Arcanum, the Living One's first companion, Virgil, is now an elderly mage teaching a young boy, Thomas, in magic. At some point, the game features two teen protagonists, Thomas, and a young technologist girl, Bekah, as Kerghan has 'somehow returned' and possesses them in a vision to elderly Virgil, with Thomas later casting a spell on Bekah with Virgil at his side during the plot. At some point, Virgil has flashback sequences to his quest with The Living One, meeting them at the IFS Zephyr crash site, encountering the Panarii cult at Tarant, (seen spying on them from a window in the concept art), recalling Kerghan's past life as a Necromancer resurrecting the dead, and then defeating Kerghan in the Void with help from the Living One's companions casting spells, with Kerghan's design now being retconned into a spooky demonic figure with a scythe.
In the character lineup, were also unnamed concepts for a Technologist Gangster and a Half-Ogre with a gun.
This project was likely shelved very early in pre-production due to how niche Arcanum was as an IP, and the difficulty of trying to sell an obscure 2001 RPG for an altogether different tween mobile gamer audience, two decades later. This will have been the second attempt (that we know of) of Arcanum's attempted sequel that has failed, following "Journey to the Center of Arcanum"