>>/12/
Ideally speaking, it shouldn't be just shitposting, but instead both primary and secondary content should be posted equally, something which never worked on /2hu/.
You can't really survive on shitposting alone 
But a new site, a new start, who knows /2hu/ might be able to host for primary touhou discussion as well, though I am highly skeptical of it happening myself 

Netplay threads would probably be the best as over a long period of time they really help in building a community, just like in /v/ soku threads. 
I already played some soku matches against the owner of /thg/ so maybe we could get this started as a habit.