Luke 21:32 and the coming of the kingdom I'm new to Christianity and am still exploring the gospels. According to the gospel of Luke, verse 21:32, Jesus says that 


  this generation shall not pass until all these things have taken place."


Does that mean that all the things mentioned in the bible, including the coming of the kingdom, should've already happened by now (in that generation)?
What are we waiting for?
All Christians are still waiting for the Second Coming of Christ, where Jesus would come in glory as a King and a Judge in contrast with the "First Coming" about 2000 years ago, where He came in humility (baby in a manger) as God Incarnate (fully human being born of a woman) and as the Lamb of God / Suffering Servant (sacrifice for our sin as He was slaughtered on our behalf on the cross).

There is a concise answer to what "this generation will not pass away until all these things take place" refer to at gotquestions.org website, which describes 2 interpretations:


Future Generation: "this generation" means a future generation shortly before the end times events.
Double Fulfillment: some events (like the destruction of the temple in AD 70) has happened while other events connected to the end times events haven't.