I find this unlikely. I think Apple will stand its ground on open Web standards (unlike Google).
Excuse me? Do you know anything about WebM and Mpeg? Google created a totally open video codec for HTML5. Apple is proposing a closed codec that requires a very costly license. Not a very open standard. Also, the Android browser supports HTML5. The Android browser doesn't support Flash out of the box. Adobe built a Flash plugin and since Google has an openly documented API (more openness) Adobe is able to release their plugin for users that CHOOSE to use it.
Most people want flash for videos. A touch screen does just fine for that. The EVO runs Flash very well. I know because I'm also a member of the XDA-Developers forum and there are no complaints.
And on one last note and the point that makes this whole argument futile is that the Droid 2, EVO and all other Android devices run Flash better than that iPhone. They also run HTML5 just as good as it too. This whole thing just puts Jobs in his place that he can no longer claim "Flash is incapable of running on mobile devices" and needs to be more outspoken with "I just don't want flash developers to be bypassing the App Store." I mean, it's totally fine. It's his/Apple's platform. Just stop kidding yourselves.