Again, none of that makes any sense. So what about the 1961 origin and the Soviets. Make the trip into space about something else...have Reed try and open up a wormhole or something else to try and get to the other side of the galaxy, then have some sort of radiation or stellar effect give them their powers. The Soviet thing is obvious, but it's also obvious how it can be tweaked to remain faithful to the original story and yet updated to something relevant. Hell, they can do it on any Star Trek TV show...why not for this story?