Again, there's just no basis for saying this other than assertions from you, JWs, some others.
Not an assertion. There is a basis, as you have probably read wt commentary and scriptural basis with argumentation in support of the belief.
Relating to the literary device Paul used referring to a heavenly Jerusalem as having real foundations, etc., one shouldn’t conclude too much other than these spiritual men saw something better from God other than the temporary enjoyment of sin.
But if you read carefully my previous commentaries that you are kindly responding to, all I meant to say is that it makes sense to me that some people will live ultimately on earth as wt teaches about God’s Eternal Purpose, and some people will go to heaven to reign with Chirst.