That would be the TD Tower II site. Hopefully whoever snagged it will move quick.
So I guess it's time to take a look at what's going on in the city at the moment. I think I've been a bit out of touch so I don't know as much of what's going on but this seems to be in the works:
Active Projects
* Micro apartments on Waterloo row: Occupied now, but some finishing work still on going. Phase II is planned for a second (smaller) building there too.
* Gorham building on Forest Hill (next to the micro apartments): Finishing up now finally.
* 600-620 Forest Hill Road: Framing for 5 story apartments going on
* Waggoners and Rookwood: Second building going up, First building being kitted out
* New Legion building (Queen street): Building being kitted out, still some exterior work to go.
* NB Justice building: Framing going up
* Centennial Building: Renovations are starting up again.
* Apartments on Beaverbrook street: Finishing up (may be open for rental now)
* Apartments on Union street near the end of the bridge; on the river side the apartments are being sealed up. On the old Speedy Glass side, framing is still going up.
* Various apartment projects on Cliff street, in the Brookside area and Bishop/Hanwell area.
* New school off of Cliff street near Willie O'Ree/Leo Hayes
* More apartments and Townhouses in the Rainsford lane/ High point Ridge/ Morning Gate area (off the old TCH)
Known projects that should start soon
* Risteen project (Queen and Smythe): To be started this year, may need a variance from PAC.
* Playhouse 2.0 (Regent and King): To be started this year.
* Apartments on Dundonald, next to Greco: Project announced last year, may start soon.
* Apartments on Brunswick (Brunswick and Sunbury, next to McAdams): I believe this should start this year.
* 374-276 King (next to Robert Simmonds: Property sold last year. A mixed use building with 18 units was previously approved for it .
* 340 King (next to Victory): Apartments planned for there, the old building was taken down but no activity recently.
* TD Tower II (King and Westmoreland): Recently changed hands.
* Railyard project: ETA?
* NB Ex ground projects: ETA?
* Union and Cliff street (Next to Wolastoq Wharf): the brick building was torn down last year and the corner lot cleared. Someone mentioned St Mary's is looking at a hotel development there maybe?
* Phase 3 of the Clowater Legacy project on Main (end of the bridge). Phase 2 (Mixed use building) on Main is complete; Phase 3 will be a second apartment building on the river side of the property.
* Mixed use project on Clark street (next to New England Pizza) that should start soon.
* Old Gleaner building: The Hospice shop was moved out of there at the end of last year, with some project in the works but details are sparse/rumoured so far.
* Popeyes Restaurant on Hanwell: Not officially confirmed but pretty much a certainty.
* 582 units (10 year project for 8 townhouse rows and 9 apartment buildings) off of Serenity Lane (off of Hanwell/Bishop)
* Longhouse project on Union street (starting this Spring.
https://www.awitgati.ca/ )
* New Correctional centre (off of Vanier Highway): Approved, not sure when construction starts
* New Mosque (announced not sure when they will start): Near Leons off of Allison Blvd
* Lemont building (next to the Lighthouse, downtown): I think the city has taken control of it and is looking for a developer to do something with it.
* 200 Smythe street: Apartments for there have recently been approved.
High profile spots to be developed
* Brunswick and Regent (behind the Justice building/NuPlayhouse): Earmarked for Commercial/Residential
* MacLean's Sports lot (Union and Cliff street): They're moving up to the old Northside Market space, freeing up a LARGE lot on a very high profile corner at the end of the bridge. With the plans for the lot on the other side of Cliff street that could make that corner look very different in 5-10 years.
* Old Ultramar Main Street: The building was torn down last fall, and the site seems prime for a commercial/residential project.
* Current Playhouse location: Still years away from being available, but its a major spot that should not be left fallow for long.
* Current Justice building: Years away from being available, but it's a building with history in the heart of downtown so something should be done with it.
* Brewbaker's building: Closed for almost a year now due to fire/electrical damage. Rumour says the building might be a write off. With the Justice building going up next to it, it's a spot that shouldn't be left empty for long.
* Old Isaac's Way (Carleton street): It's been a parking lot for 10+ years now since the building burned down so filling it in likely isn't happening any time soon sadly.
* Two Nations Crossing Smart Centre: The centre is prime to have the remaining pads filled in, especially with the growth on the north side, and the roundabout making access even easier.
I know I've missed/don't know of a lot of other projects so please chime in and I'll update this list as I can.
And it almost doesn't need to be said, but apartment construction on Brookside, Cliff Street and Bishop/Hanwell is pretty much a constant in the city now.
*Edit* Thanks for the additional information OliverD, FreddyGuy, Bishop2047 and FreddyPop