It is unclear from scripture exactly which side Satan is on, while being held by Michael - Revelation 12:7 (KJV) ... However, we can probably deduce that, as with all those who rebuke God, Satan is on the far side of the Gulf. That side is described very well in Luke* regarding 'The Rich Man' and where he ended up... Ref* - Luke 16:19-31 (KJV).
We are also told in scripture that Heaven is wherever God is. The mountain range near Jerusalem is God's favorite place in the universe and it is told very nicely in Revelation and other places that when Satan is conqured, God's home will be here on the earth near Jerusalem. That might be difficult for some to accept, however, it is clearly stated in Revelation and other places.
You can read about what hapepns to the earth when it is 'renewed' by Our Father in various locations:
Isaiah 35:1-2 (KJV) describing the beauty of the renewed earth.
Isaiah 65:25 (KJV) describing the peace here on earth at that time.
Revelation 21:2-3 (KJV) and Revelation 21:11 (KJV) describing the new home of God.
Revelation 22:3-4 (KJV) describing who will reside in the city with God and Christ.
Additional References: 2 Thessalonians 2 (KJV), Revelation 12:7-9 (KJV)
You can read much more about the new times after the return of Christ, in the following link. Get out your King James Version, look at the questions and go, yourself, to the verses listed. This is a good method to study by reading for yourself, what is discussed in the question. Blessings to you and enjoy your studies.
http://www.capitalmemorial.org/bstudy25.htm