Feature request from darrenjennings, posted on GitHub Oct 23, 2016
On latest mangeto version, would love to see TinyMCE upgraded and maintained since Magento is several versions behind latest TinyMCE. https://www.tinymce.com/
Newest version should include integration with image uploading/resizing/editing, magento widget/variable insertion etc.
I've attempted to upgrade the core myself so as to offer a PR, but it broke too many things along the way.