Following are a number of back-translations as well as a sample translation for translators of Isaiah 49:18:

• Kupsabiny: “Please you (sing.) look everywhere,
  all your people are gathering to come home.
  I have told you truly
  your people shall become a good thing
  where you are.
  You shall rejoice over those people like
  a bride rejoices while dressing in something beautiful.” (Source: Kupsabiny Back Translation)
• Newari: “Setting your eyes, look all around.
  All your children are gathering to come to your place.
  I, the LORD Almighty say like this,
  As surely as I am the living one,
  you will wear them all as ornaments;
  you will decorate them on, like a bride.” (Source: Newari Back Translation)
• Hiligaynon: “Look-at your (sing.) surrounding, your (sing.) people are-gathering now and coming-near to you (sing.). I, the living LORD, is-swearing that you (sing.) will-boast them like the boasting of a woman who is getting-married of the jewelries that she is-wearing.” (Source: Hiligaynon Back Translation)
• English: “You will look around and see
  all of your children coming back to you.
  As surely as I live,
  they will be around you for you to show to people
  like a bride shows her wedding ornaments!” (Source: Translation for Translators)