Etherius

Etherius is hinted to be the Imperial race's heaven. At the start of The Elder Scrolls V: Skyrim, the priest gives the prisoner's their last rights, whilst doing so she says as we commend your souls to Etherius, blessings of the Eight Divines on you. This suggests that instead of Sovngarde, the afterworld of the Nords, Imperials may go to 'Etherius'.