Ever since I told you about the startling disappearance of Santa Monica’s branch of Asian-ish chain P.F. Chang’s, people have been demanding answers about what may replace it.  The commodious space on the corner of Wilshire and 4th was leased a few months ago, and construction on the interior had begun, but there was no indication of what the new restaurant would be.  Just this week and small sandwich board has appeared that lets us know that the new establishment is going to be Lotus Dim Sum Dumpling House.