You do not have access to the channels which make e.g. Naruto a cross-platform megasuccess that captures the mind of half a generation. I would suggest unlockable premium content instead.
I don't expect to jump straight to the level of Japanese corporate networks, but it's an area that deserves further exploration. I think that the "cross-platform mega-success" and "merchandise of awesome characters" model can be used at lower levels, too.
I wish you every success, but think that you're running a business model based on three unlikely events all resolving in your favor. (#1, game is a hit. #2, massive demand for goods. #3, you turn out to be good at merchandising.)
Any one of these propositions seems sufficiently challenging to focus on, to my point of view.
I don't expect our first game to necessarily be a hit, but we'll be working towards what I explained above. It'll probably take time to build up to your 1, 2, and 3 (unless we get lucky and they all resolve in our favor).