Is there a way to see a name of the current application on wingpanel? I know that is possible to launch applications on Freya and see "global menu" on wingpanel, but I didn't found any wingpanel's fork that shows name of the application.
No, there isn't any version of wingpanel available that suits your request. In fact, there is no active fork of wingpanel anymore. You can find a bit more information here. Both popular wingpanel forks are abandoned.