This is good news. It wouldn't take much to refresh X-COM, but the temptation is to do too much. A graphics refresh, a bit more in the research tree, some "optional" paths to further improve replayability, multi-player collaborative and competitive (multi-player competitive mode with turn time limits would be great). But start throwing out the turn-based format or make it a first-person action shooter, and it becomes just another Quake clone.