I guess if it was a singular or very irregular stream it would be more of a high level overview of the GameWorks features that are in the engine with some quick examples of what can be done with them.
If it was a more regular thing each one might be about a specific (VXGI/Turbulence etc.), and have more in depth information about them.
What’s going on behind the scenes?
What settings have the largest performance impact?
Optimization tips?
Perhaps tips on how to achieve a specific effect?
It might also be somewhere that answers some of those questions that get asked somewhat often, examples being if the in question works across Nvidia/AMD hardware (I’ve answered a number of times on the forums for VXGI), is there a Direct Compute version in the works? Etc.
I’d imagine more general information could be put up on the UE4 wiki with a link at the start of thread (or in your signature), recording short videos might also be a better idea from a man hours perspective?
Those are some pretty broad examples but I haven’t got to fire up anything other than VXGI so it’s not so easy to come up with specific examples.
When I get the VXGI build up and running I’ll have a look through and see if there’s any burning questions or ideas popping up.