Flash-the-authoring-tool has been able to publish HTML for some years now, and an EOL from Adobe wouldn't mean anything (there haven't been any new features for SWF authoring in years anyway, so killing the tool now would basically just mean killing the HTML-authoring part).
The fact that some devs still make Flash content has little to do with Adobe, and everything to do with the fact that some clients (like ad networks) still want SWFs for various reasons.
I disagree. There are many people who simply say: Adobe is still developing this, as such it is viable technology.
Eol-ing this would solve that problem. I agree it is not any technical solution.
They need to break out of that stagnation soon or they risk being completely obsolete and not noticing until it is too late. I for one don't have flash installed (or enabled in cases where it is present as a built-in) in my usual browsers (and that isn't going to change: we are long past the point where anything a Flash app does is replicated by something else so if it is a choice of "use flash or don't be able to use X" I'll skip X and use Y instead of re-enabling Flash). I'm not the only one I know with this attitude and while we are in a minority currently that will change over time, and probably not a long time.
> It seems important they get an official EOL from Adobe with an upgrade path (most likely to html5).
Waiting for that would be a bad business decision on their part. It is obvious where things are going (or at least where they are not going or where they are no going to stay) so waiting for Adobe to tell them the facts is silly. They should be researching alternatives now if they have not done so already and making migration plans.
By technologies/languages that are older than Flash?
Floppy discs are pretty much obsolete yet spinning hard disks, the first commercially available units of which pre-dated the first available floppy disks & drives by 15 years, are still a current tech (arguably they are on the way out, but right now they are still very much here and will be few at least a few years yet).
Whether it is a good idea to do this is open to interpretation.
Honestly, though, I am not going to lose any sleep over developers / programmers / businesses who are not keeping up on latest development trends.