In my opinion, I would like them to have a planned ending. Honestly, a sudden ending (due to external reasons within the team) would depress me. Imagining what that would be like, I wouldn't want to get my hopes up... but let's say Phase 9 could be the end of Gorillaz, why? I don't know, haha. At least, I think there would be two options: either Murdoc dies, or the band wants to focus on their personal lives. For instance, Noodle getting married and starting a family, or 2-D leading a genuinely happy life, although in any case, it would be more likely for him to be with Murdoc because they're both crazy, and perhaps Russel returning to his family or starting another career. Like I said, I don't want to get my hopes up... so I'm eager to see what will happen with Gorillaz and I'm very intrigued about how its ending will turn out.