Why stop at exile?
1. Identify the tyrant.
2. Form a conspiracy and stab the tyrant 23 times.
3. Save the roman republicturkish stratocracy from tyranny.
Personally I feel that if it's executed well and/or looks nice I don't see why can't the artist reuse panels/scenes.
Also, reusing scenes is nothing compared to what Kyoani did for endless eight(15 years ago).
If I recall so far the assistants are all of a lower rank than the executed and knowing Ieyasu this was probably personal instead of political. Also has Oribe been denied his death poem?
Probably going to be comical instead. Rikyu did tell him during his own seppuku to never forget his true nature. Oribe is probably going to do something funny during the execution.