GenericTrac was mainly a plan by Christian Boos, who worked a lot on Trac in ~2005 - 2013, but has not actively worked on it much after that.
Apache Bloodhound was mainly triggered by one company (WANdisco), which has lost interest in it. Of the few remaining people, Ryan J Ollos has since become a Trac core developer instead, and has been keeping very active there.
Recently Gary Martin (formerly(?) WANdisco) "restarted" Apache Bloodhound as a Django app, not based on Trac anymore.[2]
> Trac has many serious shortcomings
I don't disagree, but would be interested in what you think they are.
[2] https://lists.apache.org/list.html?dev@bloodhound.apache.org...