Hey there Lucie,
Welcome to planDisney and thanks so much for stopping by with your question! Like you, I am also anxiously awaiting more news about
Oogie Boogie Bash - A Disney Halloween Party. I was able to take my son two years ago and we had so much fun!
Currently, you can find a lot of information on the
Oogie Boogie Bash event website including most notably the event dates later this fall during the Halloween Season. However, there have not been any official announcements quite yet about when tickets will be going on sale.
From what I've seen in previous years, they typically will go on sale starting in mid summer or so. There's not currently any way through the Disneyland Resort website to get automatically get notified when they go on sale, but I would recommend keeping an eye on the
Disney Parks Blog and
Disneyland Resort Instagram account for more details. In past years, they have announced the date the tickets would go on sale at least a couple of weeks in advance.
Keep in mind that these tickets do tend to sell out, so my suggestion would be to plan the date(s) that you'd like to attend before they go on sale and try to purchase them as early as you can once they're on sale.
Thanks again for your question, Lucie! I hope you have a spooky fun time at the Disneyland Resort later this fall.
Have a Magical Day,
Greg