The failure to completely discredit this heresy can be seen today by how many Christians think of Heaven as strictly spiritual. We will have resurrected bodies.
Good to see you say that.
It buggs me to no end that popular Christianity's picture of the afterlife (especially as reflected in hymnody) is so often just "die and go to heaven". The emphasis in the New Testament is on the resurrection.
Heaven will be a return to how we were in the Garden before the fall.
Potentially still subject to temptation and fall, then?
I don't think so because only the redeemed will be there in their resurrected bodies. Deception will be in the lake of fire.
Rev. 21:27 But there shall by no means enter it anything that defiles, or causes an abomination or a lie, but only those who are written in the Lamb's Book of Life.