Found some interesting renderings (Albeit very low quality) from 2014 in an old East Village package marketing Block Q.
2014 Outline Plan (With Labels)
Block Q2
Original Central Library Design
Original Concept for "The Riff" Block (Parcel K)
Original Riocan Concept for the Arris Block (More detailed drawings posted earlier in this thread)
Original EV606 Concept
Early Hilton Rendering
Early Evolution Rendering
The document also had a chart of 2014 downtown office availability for some reason. (Including some towers that were never built)
Interesting to note "Site Acquired by Oxford," which would later become the Oxford Tower proposal.
EDIT: Also, according to the chart, it seems Brookfield West was originally supposed to be 64 storeys. Since the west tower was never built (The East tower is the one currently standing), 64 storeys would have made it around
282 Meters tall!