Dualshockers translated a small section of the scan.
In a small interview with the producer, it’s mentioned that the new original characters were very well received by the fans, but Leifang herself had many requests, so the developers decided to finally respond to those expectations.
After adding three original heroines, this is, in fact, the first time that DMM and Team Ninja adds back one of the many characters from the Dead or Alive fighting series that didn’t make it into Dead or Alive Xtreme 3 for PS4 and PS Vita.
Well I can see that she was popular since only barely being cut from X3.
I can imagine more cut characters (cough Rachel cough) making it. Let's see if another character is coming around October.
If they make an original character, they won't be in DOA6.
Also the scan didn't mention if Leifang was in the paid gatcha.
Assuming they don't use an Original character, I'd suspect they'd use Tina for October, considering that she's put in second place regarding delisted characters (after Leifang), and Mila probably will be January, then Rachel in April assuming we're lucky regarding that bit (as DOA6 is slated for an early 2019 release, which could mean either Q1 or Q2 for all we know). Christie and Lisa, I'd probably say would be July and October, respectively, but on the other hand, that would be after DOA6 is released, so guessing there would be pointless. And again, that's assuming they don't use any OCs for any of those months (and let's face it, Tina at least probably has at least as many requests, not to mention her voice at least was in DOAX3 thanks to a glitch in the game, so she'd be a pretty logical next one, and going by that Famitsu article, I'd even argue all the cut six had many requests as well).
Also, technically, it's not even THAT many since only six were actually cut (I'm not counting the guest characters or Phase 4, since the former, being guest characters, would have required a lot of legal stuff to take care of to even extend their stay, and for the latter, Kasumi clones have been persona non grata from the Xtreme series since the first game in the series [they didn't even allow Alpha-152 to join, and that's despite her technically actually LOOKING different from her genetic template thanks to her... well, her being a transparent naked woman.]. Heck, they weren't even allowed a chance in by voting either, something the cut six at least got. Well, okay, Phase 4, Sarah Bryant, and Pai Chan weren't given a chance. Mai Shiranui wasn't even considered as a guest character yet at the time they made that poll, and while they DID hint at Naotora Ii being a new entry by revealing they will be doing a new DLC character for DOA5LR, they were very ambiguous as to even the gender of the character, let alone the character's identity or even whether it was a guest or an actual new character, so she was post-poll regarding release and even creation to a certain extent.). Besides, do you really think they're going to cut Tina out of DOA6, especially when she's one of the more well-received characters in the series?