“Elsewhen” refers to this being a new timeline.  The next strip will explain things.
As I was thinking up new ideas for this strip, I realized that this one landed on Christmas Day.  I felt the need to do a Christmas strip that still relates to this time travel story. 
Howbout combining the fact that these aliens tend to disguise themselves as important people (meaning they ARE those important people) and the idea that time travel is the only way for Santa to get the job done?  
The formula looks like this:
Aliens + Time Travel Tech + Cosplay + Santa = THIS COMIC STRIP
John Vogel