Unfortunately, I don't know where the new route is, exactly. It must continue South on the forest road and then join somewhere else. I was hoping someone would know. 
When the new route is marked, I would remove the blocked section from the route on map. 
But I took the old route to check it out. Would not recommend to an average hiker. 
It will likely continue to deteriorate and get overgrown as it seems no longer maintained.