A great new lens was announced last week, but people will always ask ‘what's coming next?'
We're told again that the next L lens from Canon will be a fast zoom (f/2.8), and the thinking is it will be an EF 16-35 f/2.8L III. We were originally told this back in March, and a patent for such an optical formula became public in May.
There could be other lenses announced in the meantime, and we're still waiting for a new Non-L, Non-DO 70-300 to arrive, a lens we've been expecting for quite some time.
We expect some specialty lenses to arrive in the next few months, most notably new tilt-shift lenses and a new macro. There's also a possibility of a couple of updated or new supertelephoto lenses.
L lens development is a slow process, and I don't expect to see any new L lens announced until the new EF 35 f/1.4L II stock levels are good and we have a new camera body or two.