As far as improving chess, I don't think any one game will do it. The only real improvement I see is an ever-expanding list of high-quality chess variants and fusions of chess and other games. The major regional chess variants on Earth now are all rather polished games that show strong signs of a common origin followed by different development. Xiang Qi, FIDE, and shogi are all excellent and worthy and different games. And that is the way 'forward', multiple games. Like sports has individual sport championships but also triathlons, decathlons... chess needs an expansion of the games it plays to grow, in my opinion. I'd like to see chess championships in 10 games randomly picked from the 1000 'best' chess variants and 5 random games from the top 100 as well as the champion of the 'Top Three', Xiang Qi, FIDE, and shogi. So I'd say the best thing you could do would be to find, design, play, and publicize the best variants you can.