Unfortunately, I couldn't pick any of the poling options in good conscience, since even the most superficially agreeable one, I think, leaves too much out.
On a perhaps "trancendent" level, it could be said quite plainly that God loves everyone, even the devil, and in a sense has "forgiven all" - when Christ was raised above the world upon the Cross, He said "father forgive them" even of those He must have known would never repent of their blasphemy...indeed, they'd only grow in it, and not simply remain His enemy, but also become the vicious enemies of His members (the Church.)
OTOH, we do know from revelation, that there will definately be unhappy souls who will find only misery in the world to come. They will even be separated from the blessed, judged (which really means understood and declared by God, Whose judgement is perfect, for what they are - His judgement does not make them what they are), and dwell in a most horrible state.
I suppose it can be said that there is a sense in which it can be said that all will be saved - for none of us will pass into oblivion, we will all inherit eternity, and indeed, we will all experience God's presence for on the last day He will be "all in all". Indeed, on the last day, all will acknowledge that indeed, Jesus Christ is Lord, to the glory of God the Father, and every knee will bend to Him...all will be submitted to God the Son, and He will present this to His Father.
However, Gehenna (and in the meantime, misery in hades) can perhaps be said to be the "highest form of salvation" possible for these unhappy souls. They are not capable/receptive to anything better. And this is their own doing.
The Patristic source of this alludes me, but there is a teaching I once read regarding Adam and Eve, and Paradise which I think is illustrative of this. According to what I read, Adam and Eve had to be expelled from Paradise, for had they stayed in the condition they were in, it would have ceased being Paradise; everything they touched would inherit the same misfortune they had brought upon themselves. Thus, Paradise is both a place, and a condition.
This is the same rationale behind why there will be a seperation of the blessed from the damned - why there cannot be such unhappy souls in Heaven, for they would make it Hell.
There is a real mercy in our race's explusion from Paradise. Just as St.Paul said that the ideal behind excommunication (besides the protection of the faithful who the excommunicated would drag down with them if they were not to be expelled from the Church) was to hope that when the person was outside of the Church, they would become miserable in their state and look back with penitence towards God and His Church, and repent, so too is our wandering in this valley of tears. It is an opportunity, to see the emptiness of sin which begets death (granting that this death in turn begets sin), and look back towards God with favourable eyes when grace comes upon us and the opportunity to return is made available - had we not been made to taste such misery and futility, we may well have never looked back to God humbeled.
That is the point of this life - not worldly "progress", or whatever other idols and vanities the creativity of Godless minds can erect; but an opportunity to try to put our hearts in the right place. But this opportunity does have a finite duration (as does this age/aeon in the "world without end"). What we will find for ourselves in the world to come, will depend entirely on what we made of this gift, and the opportunities God gave us in that time. For some, that time will be long...for others it will be brief...all in accord with God's unerring foresight and penetrating knowledge of our souls.
So, from God's "half" of this equation (the process of salvation, whether in the case of those who will be called "blessed" or those who will be called "damned" by the great Judge and King of all, always being a synergy, for better or for worse), there can be no doubt that great mercy has been proclaimed, and His generosity and love (even if not easy for carnal eyes to see) is extended to everyone and everything. Thus in this sense, all are in some way "being saved" or in a qualified sense, will be "saved."
The real question is, what are we doing? What about "our end" of things? That, unfortunately, will not universally be one which can be characterized as being universally "loving" or "humble" - where as God has most certainly been both, in our regard, without exception.