Well, I'll add my 2¢ but don't think I have a definitive answer for you.

First of all,  HTML5 is meant to obviate the need for many browser 
plugin and when combined with Javascript will be able to substitute for 
some of the things applets are used for.

Java is much more than a browser plug-in and HTML5 has nothing to do 
with its other uses.

Joe

On 01/18/2013 05:26 PM, Todd And Margo Chester wrote:
> Hi All,
>
> With all the security problems in Java right now, does
> anyone know if HTML5 will eventually sub for Java?
>
> And, will HTML5 have its own list of prodigious security
> problems?
>
> Many thanks,
> -T