Getting back to John's original query about the 188. It is the Multisystem (AC/DC) version of the latest Bombardier design.
So far, there are AFAIK 6 delivered and one is being evaluated by BLS at this moment.
The model will be available with or without last mile diesel module. As far as I know, it will still be BR 188.
It will be interesting to see where Bombardier goes from here, as BR 189 already exists (Siemens), so the next iteration will have to skip some numbers.