I would like to use this thread to discuss about Evolutions in Digimon Adventure Tri. including Chosen Children's Character Arcs, The Digimon Evolution Moment, and The Digimon Evolution Sequence.
First off, Determination suggests that Ultimate Evolution is accessed through solving Characters' Flaws. I find this interesting as Perfect Evolution was about maximizing or realising Characters' Crests, their outstanding attributes. Coincidentally or intentionally, it seems that Ultimate Evolution Sequence seems to be quick in changing forms in the same posture or stance as the characters declaring their resolutions. Another thing is that it seems like conflicts are the opposite of their crests so far. Taichi and Yamato having Courage and Friendship issue aside, Mimi's Crest is Purity/Sincerity, but her flaw is being Self-Centered/not caring for others in the pure sense. Jou's Crest is Sincerity/Reliability, but his flaw is being a coward/running away, thus, not reliable. It is nice that Ultimate Evolution does seem to have resonance/resonate with the Characters' maturity versus problems.
Personally, I feel like the Warp Evolution Sequence from Digimon Adventure Game is more intricate, but I like the fact that they are evolving from Perfect to Ultimate.