The 23-year-old joined from Toulouse in January and made an immediate impact on his home debut, scoring two goals in a 3-2 win over Chelsea in February as Alan Pardew's men eased their relegation fears.
|17/2||Newcastle are 17/2 with bet365 to be relegated
However, the France international is aiming to up his performances this season and feels Newcastle have the quality to replicate the fifth-place finish they secured in the 2011-12 campaign.
"I think we can finish in the top five or six," he told The Evening Chronicle. "It is possible, but we can’t look that far ahead."
Sissoko, who has eight international caps to his name, is also hoping that a strong domestic season will secure him a place in France's squad for the 2014 World Cup in Brazil.
"This season is my biggest yet," he added. "It's very important to do well with Newcastle.
"I know if I do well with the team then I will be selected for France, hopefully at the finals of the World Cup in Brazil, but it's really all about the new season."