Your question doesn't make sense. Please explain.
I like doing that to people
Are you referring to those for whom God has not yet chosen to save, but will in the future?
chosen happened already, so this question is a bit off-the-wall
God tells us that not one person whom God has chosen will be left outside of the Kingdom.
correct
Those who are adopted are elected to that adoption by God. Sovereignty and Grace combined. It's a beautiful thing.
correct
For the sake of brevity, I'll offer a very brief explanation...without scripture proofs
Mind you, it's just a brief look.
And I won't debate it in this thread.
Predestination and Election in the NT cannot be understood apart from the OT concept of Salvation, which is eschatological. However, there are some distinctions.
Predestination and election relate primarily to the end, not the beginning. It's not a matter of being chosen to be saved from hell.
They also are not referring to our destination, but our destiny. They relate not to gping to heaven, but an inheritance once we're there.
Also, they are not only individual, but corporate - also with distinction. Though WE are the elect, you may not be and I may not be.
Salvation not only refers to where someone is coming from AND where they're going AND quality of life there, but every step of the process.