Half Shell Heroes. This is the TMNT line most similar to Playskool Heroes (Marvel, Transformers, etc) and Imaginext (DC, Spongebob, etc)...
The first wave/series has been out for about 6 months. These are pictures from Toy Fair 2015 -- so I guess the line is doing well. Some interesting figures coming up... Mutagen Man, Killer Cockroach, Bebop, Rocksteady, Slash, Squirrelanoid, Kirby Bat, etc. Plus a subtheme called "Back In Time" coming in the fall.