After hundreds of posts, I haven't heard anyone say that if there are humanoids on other planets then we know that Christ would never in any way come to them, and then they are only saved if they hear from us the gospel, etc. Or that they would be judged with us they way we will.
If someone said such, you should consider it their own personal speculation.
From reading many thousands of astrophysics articles that are more technical than the popular science level though, I don't think we should expect humaniods on other planets anwhere near (like even in our whole galaxy), actaully. It would be amazing if it happened even one other time in our galaxy, as I understand it.
We could expect primitive forms of life on some planets in our galaxy though that hasn't been yet exterminated by asteriod bombardment or orbital migration or sudden intense flare or CME....sure. But that's not the same as intelligent humanoids of course! It's fun to learn more of the astrophysics than you get in an imaginative popular article!
But, for myself, I doubt very seriously the idea that fish or dinosaurs have souls. Lizards -- not too likely. Birds? No. See? Algae -- no. Etc.
Does that help?