If they made it easy to write new games for it, with full documentation and a method to get the games on the console, I bet it would really take off with the fantasy console people.
http://8bitworkshop.com/v3.1.0/?=&platform=vcs&file=examples...
https://archive.org/details/StellaProgrammersGuide
There is also batari basic, not sure how much more accessible or easy they could make it. The first link cartridges should work in 2600+