Yes, there could be. Junji Ito has been known to explore themes such as isolation and the dark side of human nature. In 'junji ito new stories', these might continue. His stories often show how people react when faced with the abnormal or the incomprehensible. So, themes related to the human response to fear and the breakdown of sanity could be common. Also, the idea of something being not quite right, a sense of creeping dread that builds as the story progresses, is likely to be there.
Probably themes like fear of the unknown and body horror. Junji Ito often uses these in his works.
In 'junji ito new stories', common themes may include the powerlessness of humans in the face of the supernatural. Junji Ito likes to put his characters in situations where they are completely out of their depth. Another possible theme could be the distortion of beauty. He often takes something that is usually considered beautiful or normal and twists it into something terrifying. There might also be themes related to the blurring of boundaries, whether it's between the real and the surreal, or between different states of existence. His works often play with these concepts to create a sense of unease and horror.