Did some dreamfes predictions! We're currently missing 7 girls - Kasumi, Arisa, Himari, Hina, Chisato, Rinko and Misaki.
Next Dreamfes, we'll most likely see a PasuPare girl with a PoPiPa one. That's because there were not ever two girls from the same band released back to back in a dreamfes. Furthermore, they have an order too - 5 cards are always grouped together to include a girl of every band. The first "rotation" was PasuPare, Roselia, Ag, HHW, PoPiPa. The next girl was Ako, but her "card-ID" is after Tae, putting Tae in the first rotation and Ako in the second even though they were released at the same time. Currently, our rotation is Tomoe - 1st, Yukina - 2nd, Hagumi - 3rd. That leaves us with PasuPare and PoPiPa for our next banner. We're missing Hina and Chisato as well as Arisa and Kasumi. So, we have four possibilities: Hina - Arisa, Chisato - Arisa, Hina - Kasumi, Chisato - Kasumi. Also, on another note, as Kasumi is the main char it would be kinda fitting for her to be the last character to get a dreamfes card, makes her stand out a bit more since she'd either be released alone (NR 25) or with the 1st girl of the next rotation! So I'm thinking that it's a bit more likely we'll get Arisa with Hina or Chisato.
That also means that the dreamfes after that one will have neither a PasuPare girl nor a PoPiPa one, so the dreamfes afterwards will be Himari - Misaki, Himari - Rinko or Misaki - Rinko.