With the announcement of the Canon EOS R50, which is the “spiritual” successor to the Canon EOS M50/M50 Mark II (Kiss M2) will not be using the “KISS” branding in Japan. This branding has existed for almost 30 years.
What about “Rebel”?
I think that it's safe to say that we won't be seeing that branding anymore in North America either, though we haven't heard anything official from Canon USA. “Rebel” definitely carried a lot of weight in the film days, as well as the DSLR craze. Some of us are old enough to remember Andre Agassi's flowing locks letting us know that the “Rebel” was cool.
Content creation is definitely a global thing, and identical nomenclature everywhere on the planet will be a very welcomed change.
From itMedia (Google Translated)
The Kiss series celebrates its 30th anniversary this year, but as mentioned above, the R50 is not a “Kiss” series even though it is an entry model. According to Canon Marketing Japan, camera needs have diversified with the changing times, and in order to convey the appeal of mirrorless SLRs to a wider audience than previous Kiss users, the model name used globally has been integrated instead of the Kiss brand.https://www.itmedia.co.jp/news/articles/2302/08/news192.html