Athena (Ember Moon) is currently streaming live on Twitch from her home and she said that she is not the joker in the Women's Owen Hart Cup Tournament. She is also answering questions from people in the chat, thus confirming that her live stream is not a pre-recorded video.
So, unless Athena is flying on a private jet immediately after her stream or she has a secret twin, don't expect her to appear on the show tonight. Athena would have to drive approximately 4 hours from her home to get to Dynamite in Houston.
As was noted earlier, Tony Khan said on Busted Open Radio that the two jokers would be debuting tonight, which means that these wrestlers are not currently part of the roster. That would eliminate someone like Miro as a possibility.
AEW Dynamite airs live at 8 pm eastern on TBS. Click here for news on what Tony Khan said earlier about tonight's surprises.