Obviously, they might just put hiro on initiator to replace Leo perfectly. However, my overcooked brain says that there will be multiple swaps because hiro seems to perform better on sentinel. (and he's also played senti for the last like 2-3 months)
Let me cook:
hiro - senti (what he's been playing)
alfa - main duelist (they've been experimenting with alfa duelist anyways)
derke - flash initiator/secondary duelist (would be a simple shift from entry to first contact)
boaster - smokes
chronicle - other initiator/flex
Discord