The image linked
here is from a study done about a year ago. It's one of several options proposed, and I don't believe they have completely finalized the plan, but option B1 seems to be the preferred solution at the moment (just from gossip I've heard, nothing official). However, currently it seems it would be without the final segment on the east end which crosses the bridge into Ottawa. Rather they seem to be talking about ending it at the Museum of History which is just at the North end of the Bridge.
Information on the complete study and all the scenarios considered can be found
here.
A conceptual drawing from a few years ago is
here, showing the train at the intersection of St-Joseph and Alexandre-Taché, going on the North side of the UQO (Scenario B vice B1), but it's just a concept drawing from a while back so don't read anything into it.