The takedown version of the 10/22 has a part of the takedown mechanism (semi)permanently attached to the barrel. Most (if not all) aftermarket stocks and conversion kits were not designed and built with the takedown parts/mechanism in mind, because until recently, it didn't exist. So, unless a particular item specifically states in the description that it WILL accept a 10/22 barrel and receiver with the takedown mechanism, it most probably will NOT be compatible.
I am sure that many items will eventually be modified to allow use with the new 10/22, but some will not (for instance, there may not be much of a demand for a folding stock on the takedown model, because you can make the gun shorter for transportation/storage by just taking the barrel off). In the meantime, owning one will be like being the first guy on the block with a brand new handgun design. Yeah, he has the new whizz-bang cool handgun, but he probably won't be able to find a holster for it for a year or more (unless he pays a custom holster maker big bucks to sew something up, or uses a generic nylon pouch-type rig).