I don't think it will ever arrive in the US, but the Citroen AMI is a nice little thing that is having some success in some EU countries:

https://www.citroen.co.uk/models/future-models/ami.html

Though personally (if it will ever be produced in mass) I like this "re-make" of the old Isetta, the microlino:

https://microlino-car.com/en/microlino