The upcoming edition of SmackDown will be the final show before Survivor Series: WarGames. The excitement among fans is at a fever pitch as Petco Park is decked out to host the annual spectacle. WWE has advertised several blockbuster matches and segments for tonight as the feuds and storylines will see one final build before tomorrow's event.What will remain the biggest highlight tonight is the ending of the Friday Night SmackDown. WWE usually places the most important match or segment in the closing act to heighten fans' hype and excitement. From a top star's return to a massive brawl spilling all over the arena, there are several ways tonight's show can go off the air.Here are three potential endings to SmackDown tonight:#3. Uncle Howdy may return and prey upon Solo SikoaThe MFT will battle Sami Zayn, Shinsuke Nakamura, Rey Fenix and Motor City Machine Guns in a traditional 5-on-5 Survivor Series Elimination Match. There is a good chance that the heel faction will win, with Sikoa being the sole survivor. Just when he would be celebrating MFT's victory in the middle of the ring, the lights could flicker, signaling the arrival of The Wyatt Sicks.The members of the sinister faction could show up at the ringside, leaving The Street Champion in trepidation. Just when Solo Sikoa would be baffled at this sight, Uncle Howdy could emerge from the shadows. He could step into the ring, hitting Sikoa with a Sister Abigail. Following that, The Wyatt Sicks could pose in the ring with SmackDown going off air.#2. Women's WarGames brawl may end SmackDownThe WWE Universe will see a Women's WarGames Advantage match tonight on SmackDown. Charlotte Flair and Asuka will battle each other to give their respective teams an upper hand at Survivor Series. The company could keep this bout in the main event of the show. Both superstars could deliver a hard-hitting match, with Flair eventually emerging victorious.Following this, a massive brawl could erupt in the ring. Both teams could get involved in a tumultuous tussle, with them throwing punches at each other. Things could escalate and the brawl may spill all over the arena. The show could go off air with one team standing tall over the other, making a bold statement ahead of Survivor Series.#1. Nick Aldis may send an ultimatum to Paul HeymanNick Aldis has been at loggerheads with Paul Heyman ever since the latter brought Drew McIntyre back. WWE has been emphasizing this angle, highlighting how the General Manager is furious yet helpless at this decision. There is a chance that fans could see a video package from backstage just in the closing moments of SmackDown tonight.Aldis could be seen involved in a heated argumental with Heyman backstage. The Wiseman could make his blood boil so much so that the General Manager might send him a final ultimatum. A furious Nick Aldis could close in on Paul Heyman and assert that if the latter provokes him any further, there wouldn't be any more warnings, with Aldis teasing his in-ring return to close the show.