Once ubiquitous on the web, Flash is seeing the last of its days. Especially when most of the major tech companies have signaled they have or are moving away from it. Apple was first when it refused to serve Flash on iOS in 2007. That was the first in a long string of companies dropping support.
Last year the effort picked up steam when Mozilla announced Flash would not come prepackaged with the browser over security concerns. Google removed Flash-based advertising opting for HTML5, and even Microsoft has cracked down on Flash usage. Death by a thousand cuts to go along with the public flogging.
As an example, in 2014, 80 percent of Chrome users visited a site using Flash daily. Today, that number is at 17% and probably represents legacy ad networks slow to transition.
Adobe will shift focus towards developing new web standards. Seems a little late to the party with HTML5 cementing itself as the new standard, but better to have a seat at the table. It’s unlikely the company will field something proprietary. They make plenty off Adobe CC subscription. Why rock the boat? Better to have a seat at the table, even if they are arriving fashionably late.