We humans are born to win, born to live and born to survive. Even though we got that instinct to win, live and survive, we still make mistakes that grabs us to the bottom of wheel of life. And once we hit that bottom floor, we are tagged as the "worst one". Yeah, worst but only for that moment until we get back to our senses and strive harder to climb back to the top.
When I saw Ikki Kurogane's confidence on the first episode of the anime adaptation, I already knew that he is not a failed knight. Yes, he is the worst one but only until he has proven himself as one of the best representatives of Seven Star Sword Art Festival for their school. He may have been an F-rank for quite some time but that title is about to change now that he's qualified to be a real Mage Knight.
The first season ended after their school qualifiers and pretty much told the fans that it is not over yet. Obviously, the story has yet to reveal the romance between Ikki and Stella since it just started. With these facts about the content, materials will never be a problem for a second season. The original light novel is in a very good status. Let's hope and wait for a 2nd release as the franchise is still very young and chances of it getting abandoned for another adaptation is very low.