according to a Christian account of the afterlife, angels are human-shaped. i can't say about Judaism. though certainly i believe non-evil beings, even though not on an angelic level, can still be dragons. i'm about as draconic as a human being can get, and i'm not aligned with negative forces.

would you mind elaborating a bit on the other plane of existence idea?

Judaism is the father of Christianity so it's likely that they are the same. Even so, I know that both books were written by man and as what was stated before several times, we exaggerate things or lie to make us seem like the "nearly flawless, chosen children of got that we are." So I wouldn't be shocked if angels, like souls are energy based as well and can take whatever shape they want though as I said, I would prefer dragons lol.

As for your question, no I wouldn't mind though in all honesty I have no idea what this form of existence is. It could be better than our current one, it could be worse. It's all a surprise and I doubt we'll ever find out.

According to the actual faiths they aren't written by men, but by God. And angels aren't that human. The closest is described as having a human-like body with four faces on their heads and six wings. The cherubim are described as being "great wheels of wings and eyes" and the archangels aren't even described at all; all we know is that their appearance is so terrifying that every human reacts by immediately prostrating themselves, though they CAN disguise themselves as humans for a while.

plus i was talking about a somewhat-recent account of Heaven that wasn't written in the Bible.

also, (... how vague can i be in this post .. )
don't be so sure about the uncertainty of this potential realm of existence. perhaps, if there is one, it will be revealed to Earth someday. or it may not exist.

Well, physics does allude to a total of 15 (?) dimensions, most of which are inaccessible at this moment to us. Maybe one of those holds some answers.