TMNT's first writer change in 100 issues could have gone so wrong. So very wrong. But in the able hands of Sophie Campbell, the Turtles' new direction feels as fresh as a brand new #1 could have been.
In the wake of City At War, everything's changed, and that's not an understatement. New York's landscape is totally different, and the Turtles are scattered to the four winds. The gist of this arc is establishing what's happened in the time jump between issues 100 and 101, and getting the band back together, so there's a lot of exposition, but it's delivered as part of character's new arcs rather than dumped wherever necessary.
For a first arc, it's also surprisingly quiet. There's some good action sequences, but the emotional weight is the real winner here. Campbell's depictions of how the last few weeks have affected each Turtle are varied and authentic; they each have their own personality, so of course they wouldn't all act the same way. But in the process of bringing them all back together, we get to understand them better, and they get to understand each other as well.
And of course, Campbell's artwork is still top notch. I love her style, it feels both soft and powerful at the same time, and the way she differentiates the Turtles is unlike any other artists' interpretation. The new characters she introduces feel in line with the rest of the TMNT universe as well.
I think Sophie Campbell was born to take over the Turtles. This first arc is wonderful, in both art and story, and I have no doubts that she can take these characters on another 100 issue journey just as easily as the previous writers.