I've been wondering for quite a while, with most of what Flash is used online for getting replaced by HTML5 stuff (games and etc.), has a suitable replacement popped up for Flash as an animation tool?
Adobe's best course forward would probably be to rename Adobe Flash to something like Adobe Vectorshop, discontinue support for .swf and replace it with SVG animations. Adobe already owns Snap.svg (https://github.com/adobe-webplatform/Snap.svg) so there's definitely a lot of potential there.
Why go to all that trouble when Adobe already have a web development tool that supports SVGs (Edge Animate)? [1][2]