Canon Japan recently has filed several new Tilt-Shift lens patents in Japan. These new Tilt-Shift lenses are TS-E 90mm f/2.8 Lens, TS-E 125mm f/4 Lens, TS-E 130mm f/4 Lens.
Previous rumors said that Canon will announce replacement of TS-E 45mm f/2.8 lens and TS-E 90mm f/2.8 lens in early 2017. But until now, it seems there is no announcement date for these new TS-E lenses, maybe Canon is working on a new lineup of Tilt-Shift lenses. Stay tuned for more info.