Tricky question for sure. I'd like to be optimistic, but that probably wouldn't be fair. That fracture is fairly large. The likelyhood that you can have just a filling replace that tooth structure and have it last a long time is low. Also, the darkened color and nature of the tooth structure remaining beneath the fracture makes me think this likely decayed. So, I would suspect you're going to most likely need a crown. If the decay extends even deeper (impossible to say from my computer), you may need a root canal. Worst case scenario, the tooth cannot be restored and will need to be removed (and replaced if you so choose).
In the end, it's impossible to say for certain, but I would advise seeking treatment soon, as the problem will likely worsen with time. Pain, infection, and tooth loss are all possibilities.
Best of luck.