Concealment in Vanilla
This is an obvious choice to add to vanilla because it is simply invaluable to server admin's such as myself.
Concealment currently in torch provides 2x performance of vanilla server.
Before the last 2 updates I was running 400 grids at 1.0 sim with over 10 people on my server.
You CAN NOT do that in vanilla no matter how hard you try.
Granted it was slightly dipping the sim to .98 every so often from the concealment itself working with so many grids I assume... It was still 1.0 at that time.
Currently if I disable concealment on torch with only 200 grids, I am left with .15-.20 sim speed, and if only 4-5 players are online I get .30 sim.
enabling concealment with the same situations I get .50-.70 sim speed.
Unsure why the last update caused the performance to drop but concealment regardless would be an amazing feature to add to vanilla, not to mention if done properly it would double performance or more.
Please note: if this can't be added to vanilla, perhaps just support concealment in torch officially with vanilla enhancements that would allow concealment to be even better. (you'd have to talk to jim or rexxar i guess)