You are right about the vials being poured out. Its hard to say exactly when the end comes, since the 'a thousand years is like a day' to God, so when Jesus says he's coming 'soon' it could be a few days/thousand years, lol.
Saul was a real persecutor, but he was only forgiven because he did it in ignorance, not knowing what he did.
1Ti 1:13 NLT - 13 even though I used to blaspheme the name of Christ. In my insolence, I persecuted his people. But God had mercy on me because I did it in ignorance and unbelief.
Like Jesus said, the Father forgives those who 'know not what they do'.
Conversely, those who willfuly defy God like many of the Jews and Gentiles did have no forgiveness.
Mat 27:25 NLT - 25 And all the people yelled back, "We will take responsibility for his death--we and our children!"
So, the only thing we can do as believers is to 'walk circumspectly' and judge ourselves and others within the church—not hearts but actions.
The bible makes it clear that, although many who DO good works may still be damned, we cannot judge their motives, whether they be evil or not (God only knows that, and He will judge that). If people are doing good deeds in the church, they are to be considered saints.
However, we are to judge outwardly, and discipline or excom any professed believers who live in open sin and refuse to repent. We are 'not even to eat with them' (fellowship meals) meaning that Paul kicked people out of the church for being sinners.
Compare that to nowadays, and the modern gospel message is such that these 'preachers' ONLY allow sinners into their churches, and openly call everyone in their congregation a sinner; and anyone who professes to be a 'saint' (following scripture) is labelled a pharisee and has their membership revoked, lol.
1Co 14:33 NKJV - 33 For God is not [the author] of confusion but of peace, as in all the churches of the saints. (never once called a church of 'sinners')
How can any church scripturally have a membership roll anyways? Seriously, they run those places like satanic country clubs, where only those who are rich and continually profess to be sinners are allowed to stay.