The 2018 Soul EV's range has been certified by the EPA at 111 miles. Combined MPGe has risen from 105 to 108 MPGe and consumption drops from 32 kWh/100 miles to 31 kWh/100 miles.
A large part of the range increase was the deletion of the 80% charge option; if this option is present then 80 and 100% SOC will be averaged for the window sticker number. As such, the '15-'17 Soul EVs would have had a 100% SOC EPA range of ~103 miles. The '17 Soul EV omitted the 80% charge option but Kia didn't pay to have the car recertified until the '18 model year.
So in reality the '18 Soul EV picks up eight miles of real EPA range and 3 MPGe.
This info can be found at fueleconomy.gov. In some screens you just select the regular '18 Soul and the EV is then a sub-selection, in others the car is now listed as "Soul Electric."