>Warcry lasts one round (until the start of the the minstrels next turn). Initiative has nothing to do with it.
You a kidding me?)
The initiative determines when I go in the round. In the first round, the minstrel can take acrion on the first initiative, and in the second on the tenth (it is enough to change cards with the fastest / slowest PC). Therefore, you can stretch the effect for two turns. In the first round, letting the minstrel go first, and in the second, throwing it over the last. His move will not come.
Moreover, the talent's wording does not say anything about turns. Only about the rounds. The characters do not have rounds, they have turns in rounds.
Because initiative has nothing to with it. The talent say "... during the round, until you perform another action". It doesn't say "during the rounds
". I can admit that the Swedish wording is better perhaps. If I make a direct translation it will be " during the coming round, until it is your turn again", but I don't have any problem with English wording either.