The village is large and complex. Some of it has been searched methodically and exhaustively. Much of the rest has been swept with metal detectors. To do a thorough survey of the entire formerly-inhabited area would be a monumental task - far beyond anything TIGHAR could realistically hope to tackle. My guess is that such a survey would almost certainly turn up more bits and pieces of aircraft material. Whether any would be more diagnostic than what we've already found is anybody's guess.
The village is an archaeologist's dream but, being an aircraft accident investigator rather than an archaeologist, I'm more interested in finding wreckage that hasn't been moved by people. The big problem with the village is that, by definition, anything found there was brought there from somewhere else.