I'll be making a short visit to North Texas RPG Con this year, from midday Fri until Sun morning. I'm not running a game myself, as I wasn't sure of my attendance by the submission deadline, but I'm signed up for some fantastic-sounding games:
A 1975 Castle Greyhawk "deep level" by Rob Kuntz: an OD&D game with 10th+ level characters run by Paul Stormberg of the Collector's Trove and Legends of Wargaming at Gary Con each year.
"Wow! A chance to play in a high level Dungeons & Dragons adventure by Rob Kuntz in 1975! One of the deepest levels of Greyhawk Castle!"
Zenopus - 40 years later: This is Steve Muchow's sequel to the Zenopus dungeon, which he invited me to play last year. This is his second year running it at the con.
"It's been 40 years since the dungeon of Zenopus has been cleansed. But a new evil arises and Portown seeks brave adventurers to save the town."
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The Queen of Elfland's Son: a Goodman DCC module run by Jonathan Perkel, who started the Holmes FB group & played Boinger in my game last year.
"This quest will take the heroes to the very borders of Elfland and pit them against the cruelty of the Unseelie Court of Faerie. Will the heroes overcome the machinations of the Queen of Elfland or will they fall victim to the glamours and wiles of Elfland’s malicious nobility?"
80's Heroes vs Monsters Costume Party Chaos: a non-D&D game designed & run by Chris Holmes!
"You are invited to a mysterious costume party with a costume of your favorite hero from Movies-Comics-T.V. Your white limo arrives. ------- You will be playing a new set of combat rules. It will be fun."
Ruins of Mistamere: A sequel/re-imagining of the group adventure from the Mentzer Basic Set using AD&D 1e rules, run by Lloyd Metcalf.
"The long lost lord Gygar from castle Mistamere is said to have left behind great treasure and magic, along with the a great reward has been offered for the capture of Bargle who murdered the beloved Aleena.
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Also of note in the realm of Holmes Basic, Carl Heyl (DM Carl of Save or Die) is running two sessions of his Discos & Dragons game, which I played in last year at NTRPGCon and again in drop-in form this past March at Gary Con. It's a Holmes/OD&D hexcrawl on the Outdoor Survival board using only minis, dice & other game pieces from the 1970s!
"Good King Gary is being held prisoner in the kingdom to the north. Bad Baron Bart is doing nothing to save him. Join the ranks of Gary's Crusaders to travel the world of AHOS (Avalon Hill Outdoor Survival board) and delve domino dungeons to gather the treasure to pay the ransom and have Good King Gary take back his kingdom!"
Update: I forgot to mention one other Holmes-related game at the con this year, the Necropolis of Nuromen. This was a Blueholme game using a module published for those rules. This game was also run by Jonathan Perkel.
"You have been drawn to the area by rumours of Nuromen the Necromancer and his vast treasure hoard, lost since the fall of his domain of Law’s End."