The dev is about to merge it under the #uBlue namespace. So no, it will persist in some form.
Keep in mind that auto-updates are always a thing, uBlue has a really good implementation while #Fedora and probably HeliumOS dont yet.
UBlue has started with #Bluefin #LTS based on #CentOS Stream 10 #CS10 too, but with the #GNOME desktop. HeliumOS uses #KDE (#EPEL) so a merge (like done with #Aurora earlier) makes sense.