Weird, in the comics, Gems from other realities usually end up just not doing much in the new realityWhelp, just saw major spoilers for Vision in the next episode but the picture had already 404ed by the time I went to reload and save it.
Will put it in spoilers just in case:
The actor Bettany was talking about acting against might have been himself, as pretty believeable pictures of a white version of Vision are now floating around. This would imply that Wanda does NOT take his body from SWORD and the one in the hex is a second Vision either from another reality or created entirely by her.
And well, if he's from another reality...that means that gem in his head is the Mind Gem and we are about to get a scenario where, if anything happens to this Vision, an infinity stone would be displaced in the wrong reality..which could be a trigger for Multiverse of Madness.
I'm sure more will be coming out but I saw this picture by accident and will be looking to dodge whatever else until after this upcoming episode.
I will try to find this so called leaked image tho