Me too, but I doubt they will, at least not for MANY years.
Those super low prices were an indication that there was an oversupply of flights, and the airlines are now in a great position [for themselves] to not let that happen any time soon.

I'd settle for resumption of direct flights from various locations in the US --> various locations in China, at a reasonable price.
What is reasonable?
Well, to me it would be something like this for discount fares: ~$1100 R/T in E, ~$1700 R/T in PE, and ~$3600 R/T in J.