Sporting some of the more evocative ghost signage in Midtown, the vacant former Saigon Cafe #2 seems to be in the process of becoming the future Cafe Helene. This TABC sign is dated May 24, and a rep from the building’s leasing company says that the new sandwich shop should be open here at 3101 Main St. in the next few months. Located between the Ensemble/HCC and McGowen stops, the 8,000-sq.-ft. building dates to 1948, county records show, and it’s catty-corner from the not-quite-3-acre swath of the Midtown Superblock and that back-of-a-strip-center mural that was painted in April. For now, a thorough gutting of the building seems to be underway, at least judging from the size of the pile of scrap in the back: