If SS was smart they'd re-release Emperor Palpatine before HT announces theirs. If HT didn't announce one they would make some decent cash on it.
Pretty much sadly sums up what Sideshow has become as a company in the 1/6 world... Bottom feeders. Vader, Boba Fett, re-released to capitalize on the hot selling Original Trilogy Hot Toys. It is really sad as someone who was buying their stuff day one. They have just priced themselves out of the market to the point we all just laugh at their prices compared to the perceived quality. We know we would all flip the Emperors or drop our year out preorder as soon as Hot Toys previews theirs.
Had they cared even a little anymore they could have released 4-Lom as is or in a 2 pack with Fett for those that missed him. Then IG-88 could have shipped with a special Dengar 2 pack. This would have retained the collectible single original figures. They just don't seem to care.