Hi,
Thanks so much for your interest in Data Illustrator. We are very thankful for your feedback and explanation of features that you would find useful. I have just entered them into our internal feature-tracker. Stay tuned to @dataillustrator on Twitter or this page for new releases of DI.
Data Illustrator is currently a research prototype supported by a small, dedicated team of researchers. We are not a typical for-profit product with a roadmap that can be shared with our users. Also detail-oriented features like color swatches and more advanced text-editing are pushed further back in our list in place of features with greater "research value". By "research value" we refer to features that can drastically enhance or improve our users capabilities for creating data graphics (e.g. re-usable macros or re-using data that you described earlier).
Thank you,
John