New Brian Flynn interview discussing Ultimates.
https://www.youtube.com/watch?v=yJO2zvpnW-AHe doesn't reveal anything new really for Turtles. He mostly talks about how everything's changing with the shipping industry and covid restrictions in China and the US, such as China only allowing factories to work 2 days a week, and in the US there not being enough employees due to California imposed covid restrictions. He also said there's shit like ships getting quarantined for 2 weeks out of the blue, because someone on the boat will have tested positive for covid, so the boat just sits for 2 weeks, and that every day is more new bullshit that didn't happen before, such as when he gets Reaction Figures to retailers he used to have to get them 60 days in advance, but now retailers want them 120 days in advance to sit in their warehouses, because everything's slower for shipping.
Of the turtle news in the video he says it's deliberate that Mike the Sewer Surfer has multiple heads and a removable pair of sunglasses, because he wants you to have the ability to swap the heads and sunglasses onto your regular Mikey. He said the figures will be color matched to work, and that his plan is to do similar with the other turtles and give you options. So you should probably invest in the disguise turtles for more heads and accessories at the least.
He also said that the sais in the mouser pack were there to make up for the pair of sais for the Ultimate Raphael that had warped tips on them.