Unfortunately, it's unlikely much of East Harbour will match the rest of OL, if any of it at all. This is because East Harbour is technically part of "SmartTrack" and therefore is being done as part of that overall package by Infrastructure Ontario, an organization that's somehow even worse at everything than Metrolinx is (there was actually a pretty good Star article a few months back about how IO is a big reason why a lot of Metrolinx projects go so badly, since they basically do all their procurement through IO). So unless portions of the OL station are separated out into a separate contract from the GO station, it's unlikely much or any of the station will resemble the other OL stations. This is also why East Harbour has always had renderings released at separate times from the other OL stations (It was the only station missing from the big render package first released, a couple years ago, for example). It's basically it's own project, which happens to include an OL station.