Disney still sells annual passes to Florida residents. We bought ours in June.
It is currently limited to the Pixie Dust Pass, however.
Lots of other Disney annual passes are out there from renewals as well.
It seems unlikely to me that Disney will get rid of the passes, since they generate nice, large chunks of revenue.
Before killing them, Disney has a vast array of options including price increases and visit limitations.
What is the master plan for Disney tickets and passes? It wouldn't surprise me if one day half the guests go to the parks in the morning/early afternoon and the other half in the afternoon/evening with limitations on hopping and annual pass use, but that is all wild speculation.