It's hard to say for sure. They might be rethinking their strategy or have run into financial constraints that have halted new comic production for the time being.
Kaos Ultraman was a fictional character in the Ultraman series. The Ultraman series mainly talked about special TV series and movies, in which Ultraman was the protagonist fighting monsters and aliens to protect the earth and humans.
Tua's character can be developed by showing her struggle with her past loyalty to the Empire. She could have moments of doubt about whether she's really on the right side now. This internal conflict would make her more complex.
I'm not sure specifically what the 'hawk tua girl story' is. It could be a very unique or personal story that I'm not familiar with. Maybe it's a story created within a certain community or by an individual.
His relationship with his teammates and coaches could also be a top story. Maybe there are some interesting behind - the - scenes stories about how they work together, for example, how he communicates with his receivers during plays to make sure they are on the same page.