According to Licensing Biz and Stuff, there will be a new LEGO Sonic the Hedgehog theme with four new sets coming this year.
LEGO 2024 Sonic the Hedgehog
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Sonic the Hedgehog, Brickipedia
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▻ Coming soon to the LEGO Ideas range: Twilight and a botanical garden - HOTH BRICKS
Four must-buy LEGO sets for gamers – Blocks – the monthly LEGO magazine for fans
LEGO Ideas Sonic the Hedgehog Green Hill Zone (21331) Officially Announced - The Brick Fan
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LEGO Friends 2023 Official Set Images - The Brick Fan
From Players to Builders: The new LEGO® Ideas Sonic the Hedgehog™Green Hill Zone set offers fans a fun run of nostalgia