To the naked eye, not much has changed in the year that passed since Malaysia-based Genting Group announced plans to build the $2 billion to $7 billion Resorts World Las Vegas on 87 acres on the Strip. The concrete-and-steel structure — remnants of the unfinished Echelon development mothballed by Boyd Gaming Corp. in 2008 — remain standing. A year later, other than a few signs touting the coming of the hotel-casino, the site appears unchanged. But Resorts World Las Vegas is alive and well. Genting representatives and government officials say the development — the Strip’s first new resort complex since…