Every knee bows IN/EN the Name of Jesus in all dimensions of the earth, the heavens & the underworld. Of course they are all saved, and more so, being reconciled in the mighty helkuo of the Unlimited One.
This identical polus “made sinners” in the first Adam, are the polus “made righteous” in the Last, every last broken wreck reconciled!
Are our broadest hopes broad enough? Shall there be a nook or abyss, in all the universe of God, finally unlightened by the Cross? Shall there be a sin, or sorrow, or pain unhealed? Is the very universe, is creation in all its extent, a field wide enough for the Son of God?
Never ever limit the Holy One Of Israel! If you imagine His will being multiple choice, know His will prevails, ALWAYS!
Salvation in the koine =esothen & sozomenos & sothesomai
There is a tense in koine known as the descriptive present, or the progressive present, which depicts an action in progress.
Yes, God IS the Saviour of all mankind, not some of mankind: all of mankind!