This just sounds like a complicated way to get independent states in Siberia that are """"""Catholic"""""" and "technically" swear fealty to the Teutons but in reality are independent.
Without trying to derail the thread, but it is tangentially relevant to the OP, as some poster mentioned earlier: could the Teutonic Order realistically conquer Novgorod by force of arms?
Un-slavified Norse/Swedes setting up shop firmly in OTL Novgorod and spreading east from there? Maybe. Anything resembling post-Ottonian H"R"E or the related Crusading Orders forcing their way through the Slavs and Steppe peoples? Much less likely.
Without trying to derail the thread, but it is tangentially relevant to the OP, as some poster mentioned earlier: could the Teutonic Order realistically conquer Novgorod by force of arms?
It could not. Initially, because geography was wrong (look where it was located) and when it was forced to include Livonian Order, interest to the adventures in that direction was minimal because there was plenty of entertainment with Lithuania, Poland and its own cities and nobility. For a short while Pskov invited couple Livonian knights as city administrators but that was pretty much it. For a major conquest you described Order needed a complete concentration of its forces (including the willing foreigners), and a complete assurance that Poland and Lithuania are staying neutral, and (depending on time) an assurance that the Horde is not going to protect its vassals. And a lot of luck for such a difficult campaign.