As mentioned before the Eaton Warehouse is fully occupied, so there's no imminent pressure to redevelop it, but I agree it could be a showstopper once we reach a tipping point here.
Would love to see the garage doors opened up to make retail spaces, and put a raised sidewalk along both sides so you can enter at an even level. Seen quite a few similar developments in other cities – the Pearl District in Portland comes to mind, something like the
Keen Garage. Even looking at a local example, long term plans for the space
under the rail tracks at The Forks would work great here. Not sure if an entire city block of office space would be needed here, so second storey would make great residential.