Following are a number of back-translations as well as a sample translation for translators of Jeremiah 49:39:

• Kupsabiny: “But I will re-establish the land of Elam
  in days that are coming so they will find/get blessings.’” (Source: Kupsabiny Back Translation)
• Hiligaynon: “But later-on I will-restore/[lit. return] the good situation of Elam. I, the LORD, (am) the-(one) saying this.’” (Source: Hiligaynon Back Translation)
• English: “But some day, I will enable the people of Elam to return to their land.
  That will surely happen because I, Yahweh, have said it.’” (Source: Translation for Translators)