Canon will announce two new ultra wide-angle lenses in the next days. According to recent rumors these lenses are going to be the EF-S 10-18mm f/4.5-5.6 IS STM and the EF 16-35mm f/4L IS USM.
If we are going to talk about a replacement than both lenses will get image stabilisation, the EF-S 10-18mm will be a bit slower than the EF-S 10-22mm. The EF 16-35mm also gets slower by the aperture.
New Canon EF-S 10-18mm and EF 16-35mm f/4L IS To Be Announced Soon
According to Digicame-info Canon will announce two new ultra wide angle lenses in the next few days. These wide angle lenses are expected to be the EF-S 10-18mm f/4.5-5.6 IS STM and the EF 16-35mm f/4L IS USM.
If these lenses become available with these specs than Canon will reduce the prices of its wide angle lenses. Both the EF-S 10-18mm f/4.5-5.6 IS STM and the EF 16-35mm f/4L IS USM lenses probably be cheaper than the current models.