Maybe someone can chime in on the last question, but pg 14 of the sup (dec 2015) shows the current projects at 1 million square feet at $160m or so cost. (June shows 350k sq ft, ~50m, ~10m revenue). Even higher redevelopment cost at 160/sq ft. However, they seem to project cash flow of $33 sq ft. ($20 sq ft June 2016)
On the face of it, it appears they are going for their highest value developments first and then will move down to lower cost ones.
But I see no requirement to complete this in 1 year. They seem to have 70m fcf so this could take 2-3 years for 1 m square feet. On the other hand, they do have some cash on hand of $250m to dip into. I hope they can self-sustain but I can see the counter-argument that to speed this process up they might need more cash. It's like your own business. If you don't have enough cash you can wait until your bank account builds up or you can go and get a loan if you are in a hurry to do something.
However I'm totally stumped why they pay a $1 dividend at all which doesn't make any sense to me other than a vague thought that they want to pay shareholders for "waiting around". This doesn't strike me as entirely rational. I'm not too clear on REIT laws though and whether they must pay out based on NOI or based on free cash flow after all capex. They could easily engineer to have zero or close to zero fcf if that allowed them to avoid paying a dividend and develop faster. On the other hand, Seritage appears to be a low cost supplier pushing large new supply into the retail real estate market. Perhaps there is also an argument to be made that too fast development would depress prices and the goal is a measured, steady supply coming online in conjunction with economic recovery.