It's confirmed to be "No Laughing Extreme Poors GoTo Las Vegas" (this is a rough translation from me)!
Even rougher translation from their official Line account:
"We are doing it again this new year's eve!
No laughing Extreme Poors GoTo Las Vegas
As our 15th new year's even special slot, Gaki members will be pretending to be the extreme poors going to Las Vegas to fufill the dream of becoming filthy rich, and they will be encountering the owner of the hotel, seeing shows and events! The 5 members will be faced with unexpected traps to make them laugh.
Besides the regular guests, there will also be a luxurious amount of special guests appearence?!
GOD DAMN, will one be able to escape from that man's extreme slap this year?
The show will be broadcasted from 6:30 for 6 hours on the 31st of December
Please enjoy GakiTsuka this year during new year's eve and laugh a lot!"
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Edit:
Proof that I'm not lying or just reusing images from previous years
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More edit:
Just realised they also had tweets for this haha
https://twitter.com/gakitsukatter/statu ... 0915453952
https://twitter.com/gakitsukatter/statu ... 3333140480