Ten Ren's is opening on Main St. in Alhambra. It will be in the plaza where the Smart & Final and Wells Fargo is (between Hidalgo and Cordova), I believe in the largish space formerly occupied by a game store.
In the City of Industry, signage is up for Chicken Papa. This is in the same plaza with Hot Spot Hot Pot, which is just a few doors down. 18246 E. Gale Ave.
And, lastly, while walking around Four Seasons Plaza doing some legwork, a real estate agent was escorting a Chinese couple around explaining some of the differences between the buildings housing Red Pine Hot Pot and Xu Garden, on either side. Work was actively being done, so I'm guessing this will be another restaurant. Four Seasons Plaza only has 8, plus 2 two tea houses, so clearly there is a need.