Unless you've replaced the resolution mechanism, the future events of any Durance session could best be described as "aggressively unstable". Doubles will result in something that most future people would regard as a significant past event. Triples will dramatically overthrow the established order, as in: detonate a landmark, start a coup, or reveal some terrible secret of the planet that Authority either never uncovered or covered up.
Yet here your voyager is, in the future, seeing a world that certainly exists and taking actions in same, with nary a hint of the tremendous changes that may shortly be happening because you haven't rolled them yet. Aside from limiting them to a hermetically-sealed and completely opaque room or series of rooms, what choice do you have?
Let's examine some assumptions.
You may believe that:
1 - The future is comprehensible. You can perceive and interact with the future world to the same extent that you could the world on the other side of the time hole.
3 - The future is predictable. You can examine future events and their history and understand the things that produced them in the past.
5 - The future is definite. What you are seeing is the clear and certain result of all temporally prior events, whether they are narratively present, passing, or yet to come.
7 - The future is mutable. It is possible to transmit information or yourself from the future to the past, and later narrative can be assumed to affect your current future.
9 - The future is indeterminate. Everything in it that could be changed can be changed. No one is fated to do anything and nothing is inevitable.
11 - The future is inviolate. Time travel is weird and rare, and so the things that you change are going to stay changed.
You may also believe that you were headed for a hospitable planet only a few shades off from dear old Mother Earth, and Authority had planned to create a boundless new colony that would bring prosperity and justice to everyone.
So, in developments that might seem familiar:
11 & 1 \\
9 & 3 \\
7 & 5 \\
you're gonna pick three.
And whatever shows up, whether it's (7 9 11) a fine frappe of potentialities where regular three-space navigation takes detours along the now/later and maybe/maybe-not axes, or (1 3 5) an apparently changeable future that gets re-edited by Temporal Authority out of their base in Fixed Point Kilo because this particular disaster needed to happen in all its particulars, it's going to let you depict whatever future makes sense at the time and plausibly uncouple it from causality.