Action Script 3 - language convertion for mobile devices.

Hello.

I would like to know your opinions/plans for the future of action script.

I've designed over 300 flash websites and now it seems that I'll have to reprogramme all of them one by one. 

I know that many of you face the same terrifying problem.

But I'm still not sure which language should I switch to.

Is HTML5 really the next step?

Did you try convert complexed .fla files into HTML5 canvas?

Or maybe there are some other alternatives?

Please share your thoughts.

Regards.