A lack of CN reps is gonna be a huge problem for MVS - from what I've observed, CN is really what people are most interested in from MVS, but WB have a bit of an aversion to merchandising and reintroducing their more recent animated legacy content, (which is weird because that's literally what CN was created to do) best shown by Space Jam 2 being completely Cartoon Cartoon-free, old or new. When MVS was revealed I was honestly super surprised AT and SU characters made it in just from Space Jam 2's prescident alone. It's a conflict of what fans want and what the suits want to promote.
I guess it's mostly a case of Nick not having many animated big hitters nowadays, so they benefit a lot from encouraging kids to dig up their earlier stuff if they want a 'toon fix - CN are still making hits with fandoms more devoted than anything they've made before so there isn't exactly much need for Ed, Edd n' Eddy Funko Pops or Cow & Chicken lanyards. As much as I hate to say it, even if MVS was just PTE 2 it'd probably be laser-focused on the 2010s with maybe Courage or a bit of OG Ben 10/PPG content if we're lucky.