Ohhhh....let's spin this more. "The just shall inherit the earth" Matt 5:5, note carefully, it does't say the same people living forever, it's just the just as a whole that live forever in paradise.
"He will wipe every tear from their eyes, and there will no more death, or sorrow, or crying, or pain. All this things are done forever" Rev21:4, let's be clear, people could cry sometimes in paradise, so this scripture is symbolic. When people reach their old age they are gonna died as always, but is gonna be a painless process.
So survivors could go with their lives in paradise, including marrying . Don't expect to live forever, of course.
OMG, I think I could start a new religion here.