I'd like to be able to add regexes for text that should be treated as links and a command to run with the text as an argument. For example, I'd like to be able to specify that BUG=123 should be clickable and should run the command "open-bug 123". Even if we limit it to just opening in a browser, it'd be nice to specify that "BUG=(\d+)" links to "http://mybugtracker.com/bugs/\1".
This is unlikely to ever be implemented in Konsole.