Hasn't been much official news on the Niro of late, but Internet automotive manifest sleuth, Bozi Tatarevic (@hoonable) came across a document that seems to indicate Hyundai imported an electric vehicle for crash testing purposes. Running the VIN through a decoder shows it's a Kia Niro EV. So, they're coming!
I'm not sure if the dimensions will change much with this updated Niro -- I suspect not -- but today's Niro is 10 inches longer, the same width, and an inch lower.