Other than the obvious cuts, the JHH linking material, they have Rowlf on the cover, so I doubt there would be problems with his appearance. Plus, as I stated before, Disney does have a relationship with Lionsgate (again, bad early 00's sitcoms on DVD distribution).
But even then, the thing is clearly around 30-something minutes long at best. I'm REALLY hoping for some nice bonus features. I really hope they can get at least one Dog City cartoon on there, if nothing else. I'm sick of watching those 2 episodes I have on VHS.