Last 'restoration' work at Lookout Mountain was in 1998. This involved Silva's restoration of many of the fairways bunkers (approx 50) and renovation of many greenside bunkers. Work also involved new (restoration) green, the double plateau at the 17th and a new green (restoration) for the 12th Alps.
Since then, a few new tees have been added to lengthen some holes.
In addition, many trees have been eliminated in the last 5 years so that the lookout about the course is much improved.
Recent 2007/08 discussions have centered about a few remaining bunkers to be restored, discussions of additional greens restoration work, irrigation, etc. IMO, a few greens 'restored' out to the fill pads, notably the 3rd, 9th, and 15th, would also be welcomed.