Hello,
The Thelia project is far from death ! Last commit was done yesterday, and new modules are published regularly.
The 2.4.0 version is nearly ready to be released, with exciting new features (PHP 7.2 support, template inheritance, global Propel model, ...) and a LOT of bugfixes and minor improvements, see here what is included
We need resources to thoroughly test new features and upgrade process, and fix a lack of performance when the cache is refreshed, which is the last thing to fix before starting the release process. A we (OpenStudio and CQFDev) are very busy on our projects (Thelia projects, mostly), the progress is slow.
For those wo love Thelia, feel free to try 2.4.0 from the master branch and report bugs and problems in Github issues, this will help to accelerate the coming of Thelia 2.4.0.