User blog comment:MakeShift/Discussion on post-Crisis changes to the wiki/@comment-31722073-20200120203715/@comment-30320970-20200120232518

It's for what Kate said in the 1x11 promo: "Seems like my wish came true", she wished she could have met Beth "like that" referring her Earth-99 counterpart, and while she said that the promo shows the pictures of Kate and Beth's E-99 counterpart. OF COURSE it's merely a speculation of mine, i don't give it from granted, what's sure is that a doppelgänger of Beth that was not from Earth-1 appeared in Earth-Prime and was clearly out of place... and she's not the only exile doppelgänger appeared this week, yet none is from EArth-2, 38 or BL