God's will for those who believe on His Son entails more than never being lost.
Indeed, we can all look forward to going to heaven.
Yet today, in Christ, we are in His Kingdom already, here on earth!
"[God] hath delivered us from the power of darkness, and hath translated us into the kingdom of his dear Son:" (Colossians 1: 13)
So, eternal life is about a lot more than getting to heaven some day.
We have this life now, and He wants us to have it in greater abundance:
"The thief cometh not, but for to steal, and to kill, and to destroy: I am come that they might have life, and that they might have it more abundantly." (John 10: 10)
"For if by one man's offence death reigned by one; much more they which receive abundance of grace and of the gift of righteousness shall reign in life by one, Jesus Christ." (Romans 5: 17)
"For we ourselves also were sometimes foolish, disobedient, deceived, serving divers lusts and pleasures, living in malice and envy, hateful, and hating one another. 4But after that the kindness and love of God our Saviour toward man appeared, 5Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost" (Titus 3: 3-5)
God's will for us is life, and eternal life abundant and rich.