I agree with you about pneumatikon. I've always thought that Jesus post-resurrection appearances demonstrate that what we think of as the physical universe is a subset of the spiritual universe which seems to encompass, at a minimum, both of those worlds; while the physical universe seems only to barely "intersect" the spiritual realm.
The whole of the "end times" will probably be just as recognizable to us as the form of Jesus' coming was to the Jews in His lifetime. Even the 12 (or 11) and his own mother were surprised, while still recognizing Him.