It's no surprise anymore that IBIS is coming to future EOS R cameras, and possibly a Canon DSLR. This patent is an extremely detailed view of Canon's IBIS unit. It looks like the technology is ready to go.
Canon News breaks down this particular patent:
They are looking to create high efficiency in the movement force, and to improve the linearity of the magnetic circuit for position detection. Both of which are important to moving a large full-frame sensor quickly and with a high degree of accuracy.
Below is an exploded view of the IBIS unit found in Japan Patent Application 2019-152785.