I've seen 2 Lightsabers from Ultrasabers with a curved hilt. One is the Mantis, which from what I've read is a beautiful saber, but is heavy, bulky, and contains lots of sharp edges and is tough to keep clean. On the other hand, you have the Curved Reaper, which is slick, lean, and not available.
What are the chances of Ultrasabers adding a leaner curved hilt to their lineup in the near-ish future?
No one knows but Ultrasabers and Emory. However, I do how we get one or the curved Reaper on the shop site soon, I really want a curved saber.