Short answers, pulled from the story.
The series was cancelled due to complications with Capcom and their dislike of the comic, according to the epilogue published in the third and final issue. The comic ran for only three issues, from August to November 1993.
The Street Fighter Malibu Comics series ran for three issues, published from August to November 1993. The third issue included an epilogue describing what would have happened had the series continued.
Ken was confronted by Balrog and then defeated by Sagat, who stabbed him with a knife and left him apparently dead. The epilogue in the final issue revealed that Ken would have been shown to have survived had the series continued.
Nida is a street fighter from the Philippines who traveled to Okinawa to learn Shotokan karate from Sheng Long. She harbored a grudge against Ryu because an evil double of Ryu, created by Bison, had killed her father.
M. Bison served as the primary antagonist, directing Shadaloo operations to eliminate threats to his world domination plans. He recruited Sagat, had his agents poison Sheng Long, and had conspired with "dark forces" to create evil doubles of the world's street fighters.
Ryu and Chun-Li showed romantic feelings for each other in the first issue but had not gone beyond kissing by the time the series ended. The epilogue in the third issue stated they would have eventually ended up together had the comic continued.