There will also be some similarities to unused TIE Fighter designs from The Force Awakens, and you can head to the Making Star Wars site to see some concept art of that ship.
Much like how Darth Vader flew a specialized TIE Fighter in A New Hope, Making Star Wars has heard that the Sith Lord’s grandson have his own TIE Fighter to shoot down Resistance scum in during Episode VIII.
However, the design will not so much resemble the ship below, but more like the TIE Strikers seen in Rogue One: A Star Wars Story, with the fuselage being “pill-shaped.”
Remember those life-sized X-Wings in The Force Awakens?