In a recent interview with Imaging Resource, Canon executives said that a lot more is coming down the pipeline in 2019, they obviously didn't get into specifics.
Imaging resources summarize:
My main takeaway from this discussion was that Canon will continue investing in photographic technology, saying that imaging is fundamental to everything that they do and that we should, therefore, expect to see significant developments in the photo arena over the next period of time. I have been concerned — as have others — by what it meant that the EOS-R and EOS-RP were built around the sensor from the EOS 5D Mark IV, a camera that's now more than two-and-a-half years old. Without giving specifics, they did note that they had a lot in the pipeline for 2019, so it sounds like we can expect to see a lot more from Canon before the end of the year. Read the full interview
Without specifics, we cannot confirm what the product roadmap is going to look like for the remainder of 2019. We're still thinking that a new EOS R system body won't begin shipping until early 2020. We were given an outline of a possible roadmap a short while ago.
There are a lot of product lines that need new products, so I fully expect a higher end EOS DSLR to be announced, along with new cinema cameras. I can also see some EOS R announcements in 2019 that may not ship until early 2020. It may depend on when the 6 new RF lenses begin shipping. August and September are always big announcement months. I also expect new product lines this year. More on that later.