Although the verse 2:36 is related to the symbolic-metaphorical story of Humans and does not explain the details, but even this verse says "for a while or period" on 'Ardh' or the earth or the lows.
Yes, clearly For a While does mean for some years we live then die on Earth but it also can mean the earth is not our abode for all times (even in this world). This verse does not close the door to the leaving earth explicitly.
However, I do not say that we will 'difinitely' leave our planet one day. But can we say it is impossible?! Personally my answer is No.