Thanks guys.
To answer your questions, there will not be Flex or Hero versions, as those aren't unique VV creations, and there are more than enough screen accurate and inspired fonts for both of those sabers.
As for retroactive purchases, I don't know. They may decide to make them available at a future date, but they would have to figure out the logistics of that and see if it is worth the effort. The IK font was filling that role before these were released, so you still get a great font, even if it is not exclusive.