This predated both temporal time AND the beatific vision.
All created beings had a point in time where they were created, except God. God has always been ‘in infinity’. When the angels were created, as their wills are ‘fixed’, they either freely chose heaven or freely chose hell. When we are created, our wills are not ‘fixed’ until we at the point of death choose heaven or hell. But since we didn’t ‘start at’ infinity but had a point of entrance INTO infinity, we had the choice to choose the heavenly infinity or the hellish one.
The point is simply this: At the moment of our ‘final destination’ choice, once we have chosen, we will remain fixed.
In a sense, we will always be, present tense, eternally, ‘freely choosing’ heaven, or freely choosing hell.
We will not be able to, after death (or after creation when it came to the solely ‘soul’ angels) change our freely chosen choice as we are always MAKING that freely chosen choice.
