How many lots will actually open up?

[Sovi]

With reclaimed housing announced, Do we really have any idea how many houses will open up? I would really love to buy a house but I feel as though even if all the plots in all the wards became available there would still not be enough for all the players that are waiting for them. Is there any way to see houses that are not being used?

Sorry if this was already covered, I did some searching but there are so many posts talking about fairness and short reclaim period that I couldn't see if there was any info on what we can realistically expect to come out of all this.