[neatoman]

Let's shave it down based on important details.

Shredder isn't dead and Bebop and Rocksteady are around, that puts it between issue 25 and 50 to start with. The Turtles were seemingly operating in NYC again, implying the farmhouse deal was over, that shrinks the gap, leaving us with 33-50. Donatello was in his Turtle form, implying 44 had not yet happened which still sets it back slightly, 33-41.

So probably in the best possible gap there.