The trailer says that "we were sent beyond the reach of time where we remained until now" this is in no way insinuating that we are sent to the future. The trailer is stating that we are sent to a place where nothing happens, a dead zone or limbo if you will. The trailer also shows that he is standing in what looks like a battle field with no people and a hole tears open walking through it.

So what I believe happens is in a last ditch effort to protect the only people that can save the realm he send us to a place where time stands still until we can safely return to kick major ass.

Discuss.