Is there any chance of a feature to export and import macros and/or characters? There's a lot of copyright problems with other material that people might want to copy over, but these two don't seem like they would have that risk (or even be capable of generating it), provided that avatars and tokens aren't allowed to exported or imported as part of a character. Both of these seem like great features for streamlining creation, and especially for getting people into a newer system. Both lower the barrier to entry a lot, particularly if you make them open formats so that others can edit them directly - a third-party D&D 3.5 character generator could save a file that populates a Roll20 character with their stats, enabling them to make common rolls using predefined macros, and all of these things could be incorporated into a campaign with a few clicks and a fairly low understanding of the intricacies of the rules.