From Amazon, this ad: Star Wars Retro Collection Special Bounty Hunters 2-Pack Boba Fett & Bossk Toys 3.75-Inch-Scale The Empire Strikes Back Figures (Amazon Exclusive). It looks like Boba Fett will be nearly the same as his 2020 The Empire Strikes Back reissue from Walmart, while Bossk hasn't been reissued at all yet. Given the current secondary market prices of the Boba Fett reissue, this set is a cheaper alternative at $27.99. It shows Bossk's gun in blue, but I wouldn't be shocked if it shipped in black like we saw with Lando Calrissian.
Bossk and Boba Fett are expected in January. IG-88 and Dengar are set for December. A 4-LOM and Zuckuss set has yet to be announced, but the originals complete with weapon sell for about $30 these days.