OK. That's it.
Forster did give some reasons for releasing an EV, namely that hybrid technology is too pricey to put in small cars, which hints that this Opel EV will be a small car.
We know that GM will be showing a new E-Flex version at the IAA car show in Frankfurt in September. Is that the basis for the Opel EV, or did someone at Auto Motor Sport misinterpret the Opel diesel E-Flex that will be shown there as a pure electric car? It's not impossible.
[Source: Forbes, h/t to Linton at Hugg]