It is not in our current plans to upgrade this to v8 or futher. The upcoming v9 core release will introduce multisite support, so we don't see it would be good use of our time to upgrade this add-on for v8. Most likely that will also introduce similar functionality to the core that this add-on provides.
See this GitHub issue for more details:
https://github.com/concrete5/concrete5/issues/6516...