In this case heavens seems to have a 4th meaning..
It is interesting to note that this terminology of 'new heavens' and 'new earth' of Revelation 21:1 is also found at 2 Peter 3:13, Isaiah 65:17, and Isaiah 66:22.
M'Clintock and Strong's Cyclopaedia (1891, Vol. IV, p. 122) comments: "In Isa. Ixv, 17, a new heaven and a new earth signify a new government, new kingdom, new people."
In this sense, the "new heavens" would be new rulership.
(Initial fulfillment of Isaiah's "new heavens" would have found meaning in Cyrus the Great, Governor Zerubbabel of Jerusalem, and High Priest Joshua when the Jews were being repatriated from Babylonian exile).
I am reminded that Revelation 1:1 said that these visions given to John pertaining to "the things that must shortly take place" was "presented in signs."
As such we would have to look at other parts of Bible to find meaning.
Psalms 96:1 presents "earth" as symbolic of "a society of people on the earth"
Isaiah 57:20 presents "the restless sea" as the wicked people that keep the world in an uproar.
One could thus project then that "earth" could also symbolize the firmer, more stable elements of mankind.
--------------------------------------------
For internal and contextual reasons 2 Peter 3:13 would also have these meanings and not carry a physical heavens and physical planet Earth concept. Peter just got done comparing the change to being like the Flood in Noah's day. That flood did not destroy the planet. Only the ungodly people on it. So the cleansing as if by fire mentioned in these verses would not destroy the literal planet nor the physical heavens that support it. Only the ungodly society and the forms of rulership over them would be replaced).
----------------------------------------------
I still don't know if you are postulating that no Christians ever go to dwell where God dwells.
How about 1 Peter 1:3,4 where it says the "inheritance...is reserved in the heavens for you." Would that imply that the people written to would have to get there to claim it?