The XML in the current character sheet is fairly rich, so I would like to think that the developers of DDI would be able to extend the current character builder and put useful information in to the new XML which indicates what rulesets, etc were in use when the character was created so that consumers (i.e. us) can hide/show sections as appropriate.
But indeed, we have no idea what that will look like at the moment.
It's already been announced that there will be no more updates to DDI for 4e beyond March, so I don't expect much for the future, I'm sad to say.
- Starting in March of 2014, the DDI tool set (Character Builder, Adventure Tools and Compendium), will no longer be updated with new 4th Edition game content.
From:
Cheers,
Chris