The anime Hajime No Ippo, also known as Fighting Spirit, was a manga – turned – anime, which started in 2000 and ended in 2009.

It was one of thte highest rated animes of all time, and continues to hold such ranking despite all the years passed.

Many have awaited a new season, but have unfortunately noticed that there has been no news about such.

The anime world would love to see more episodes, and have even recently started a petition:
Nippon Television: Please make more episodes of Hajime No Ippo

As the above shows, support for this has not wavered and there is clearly more money to make by continuing this anime. I recommend all who are interested in seeing new episodes to sign the petition, as well as get their friends to do so as well. I will be signing it myself soon as well.

It would be great if a new season was in fact created, but do note that petitions generally do not work (though a recent successful attempt was when users petitioned to bring Dark Souls to the PC — and did!). The current available seasons of Hajime no Ippo are (including OVAs):
Fighting Spirit (TV) (adaptation) ~ はじめの一歩
Hajime no Ippo – Champion Road (special) (sequel) ~ はじめの一歩 : チャンピオンロード
Hajime no Ippo – Mashiba vs. Kimura (OAV) (spinoff) ~ はじめの一歩 : 間柴vs木村
Hajime no Ippo: New Challenger (TV) (sequel) ~ はじめの一歩 New Challenger

Note that there are many rumors stating it would continue — such as voice actors signing on for an additional season. As of right now, those are NOT true. So sign the petition for support!