Don't know about "bite size" but a renewed effort on strenthening the digital market with smaller games as they did with the 3DS eShop (Pushmo, Sakurai Samurai, Denpa Men etc) would help Nintendo out a great deal. Heck, at this point the Miiverse and eShop are probably the most salvageable things from the Wii U experiment and they should work to refine these aspects so that the next system can benefit.