I'm not entirely sure if I would count the queen of hearts playing card as a hint or not, but it does seem interesting that both Delia and Misty are on that card.
How aware do you think the other characters are of Ash's and Misty's feelings for each other, whatever you believe them to be? How much have they shown their awareness in the episodes?
I've gone back and forth whether or not Brock is aware or not. My guess is he may have been too involved in his own love life. Besides, if Ash were more overtly attracted to Misty, Brock would notice and try to help, him, which probably wouldn't go over well. Lol. I generally think of Tracey, Daisy, Psyduck, and Team Rocket as PokéShippers because they've all had moments where they pointed out something between the two. Ironically enough, I would say that Psyduck seemed to be one of the most aware that Misty has some sort of feelings for Ash, but then again, he may have just thought the situation was funny.