Translations of the line art text. Credit to onkeikun from WtW.
Takenouchi Sora- I think she's enjoying her teenage years the most normal of them all, among the gang. You'll see how the energetic girl who loved sports changes her interests little by little to those that are more suitable for a woman.
(I was never really a fan of girlyfying Sora, especially since Mimi fits that role fine, but I honestly didn't think they'd change this. I hope they do it justice, though "more suitable for a woman" doesn't fill me with much hope.)
Tachikawa Mimi- Her free-spirited ways and innocence haven't changed. In fact, they may have gotten even moreso since her life in America. Please watch how her active, light footwork will get involved in the plot.
(Glad to see I didn't misread "footwork", lol. What's that even supposed to mean?)
Ishida Yamato- His love for his friends and his little brother hasn't changed. He still loves music, and he's still earnest about the things that he likes. The proactiveness and matured sides of him that you will chance to see from time to time will have an affect on the story, so please look forward to it.
(Sounds like Yamato.)
Yagami Taichi- His earnest, straightforward side basically hasn't changed. However, that side is naturally not the same as it was when he was in elementary school. Right now, he's able to see all sorts of situations from an objective point of view... that's why he's growing up worried and troubled a lot.
(Sounds like a natural progression of his character.)
Izumi Koushiro- His zealousness at pursuing something that has his interest has not changed. In this story, you'll get to see the boy he was as 10-years-old now grown up as a high schooler, plainly seeing parts about him that are part of the maturing of a "typical boy" in his teens.
(Same as Yamato and Taichi.)
Kido Jou- He is a serious-minded guy, so naturally his personality doesn't have any big changes. However, for this series, his ability to remain sincere/faithful may cause him to feel pressure about himself. Of course, he continues to work hard at studying as he has ever series in his school studies!
(Is this setting up him failing to become a doctor and instead pursuing being a Digimon doctor?)
Yagami Hikari- She is as usual a "big brother" child who always has Taichi on her mind. Her strong sensitivity towards Digimon is still the same, so it may be hard to discern large changes for her at first. She continues with photography.
(FUCK YEAH PHOTOGRAPHY!!!!)
Takaishi Takeru- He receives plenty of love from his big brother, while he is quite the popular guy among girls at school. I believe that he's gained good people skills and is adept at handling friendly relationships. He has a blog, and you can see hints of his future where he becomes a writer.
(I wonder what he blogs about. Digimon?)