Knowing Gintama i'm totally expecting the shinsengumi's ship to sink/crash while trying to leave Edo so they'll have to stay and join Zura.
Or maybe it was all staged like the Elisabeth story...
Nope, this is not the true ending. Every single time gintama tries to pull one of these sad endings something.. weird happens.
Also, now that Takasugi doesn't have any more reasons to hate gin maybe he'll become some kind of Vegeta?
(yes, i made an account just for this)