A much more capable Smart Cover could be in the works as a newly surfaced patent application indicates Apple's been researching a next-generation iPad cover which combines a built-in keyboard with a flexible display itself driven by multitouch technology.
Coincidentally, a recent rumor asserted Apple was researching bendable displays and exploring ways to use flexible panels in mobile gadgets (Samsung's already on it). As for the smarter Smart Cover, it could also incorporate solar panels for easy recharging under sunlight, in addition to inductive charging, smart pen input and even a battery engineered inside the case in a variety of ways...