It is certainly possible to have 'almost 80' floors with the same total height (205m) as the older 68F design that we saw in the recent images.
We know that the double-height podium floors are gone, replaced with residential height floors. That adds 4 more floors. The roof element on top (which is included in the 205m height) could be replaced with 4 or 5 more residential floors. This brings us up to 76F or 77F. And add 2 or 3 underground floors, to bring the total to 79F, without increasing the total height. I would say, though, that this building should not be considered as 79F tall, but instead as 76F or 77F tall, with 3 or 2 additional underground floors.
The renderings that wyliepoon has posted show a 300m tower, twice the height of the surrounding buildings. At 205m, the building still dominates the area, but is only 1/3 taller than the surrounding buildings -- which actually fits in with the neighbourhood better, in my opinion.
I have to repeat, though, that at 205m, this has to be one of the shortest 77F buildings on the planet -- most residential buildings with its floor count are at least 100m taller.
Bill