Two of the Islanders’ biggest holes should fill themselves this offseason. The Isles struggled all year to adequately replace Kyle Palmieri’s production after he tore his ACL, and ended up trading a third-round pick to the Rangers for Carson Soucy in an attempt to fill the hole left by Alexander Romanov’s shoulder injury. Both players are expected to be back without any limitations on day one of training camp which does, at least, change some of the contours of the offseason, even if their returns will come too late to save the Islanders from missing the playoffs. “Disgusting. Terrible,” Romanov said of how it felt to miss all but 15 games this year. “It’s really tough to just watch hockey all season long and just practicing and rehabbing. That’s what I was dealing with.” Had the Islanders made the playoffs, Romanov would likely be in the lineup right now. When the season ended, he had rejoined practices and was getting close to playing in games.…