Well, here's the thing:
Soul Eater started out as a mangá series. The animê is an adaptation of that manga. For the first 34 episodes or so, the animê was pretty damn faithful to the manga. Of course, the animê studio noticed a bit beforehand that they were running out of mangá to adapt, and they only had a 51-episode budget, so they did the best possible choice: they diverged from the original manga's plot and took their own spin on the duration of the season, tying up as many of the remaining plot points as they could for a premature ending. If you ask me, they picked a wise point in the story to dividido, dividir off from the anime. Otherwise they'd have to add mais plot points that would risk being unresolved in the end.
As we speak, the mangá is still being released, with no foreseeable end currently in sight. The characters and a few major events are all developed quite differently. If you can find any copies, I definitely recommend you read them.
Now, as for the segundo season:
The animation studio responsible for producing the original animê is "Bones", the same studio that brought us Fullmetal Alchemist, which was a very loose adaptation that ends up being developed differently has requested por the creator of the series. Now bones has made Fullmetal Alchemist: Brotherhood, a new adaptation that follows the original mangá mais closely.
What does this have to do with Soul Eater, you might ask?
Well, word has it that the producers of the animê are considering waiting for the Soul Eater mangá to play out for a bit longer. Maybe when it's close to finished, then a new season, or perhaps mais appropriately, a whole new Soul Eater animê will be produced.
It's just a rumor best taken with a pinch of salt, and you can find it in this video:
link The one who posted this insists it's real, but the fonte is unavailable. If that's the case, then wouldn't that be something?