I do find it funny how many people on HN think products are needed.
They're not, that's what AI is killing. The true successor of Canva isn't some vibed clone, it's just a bag of tools, without branding, and this will have to come from outside because obviously the company behind Canva isn't willing to reduce Canva to what it truly is, once you cut out the branding, which is... just a bag of tools.