This match will likely determine many things but it still depends on how the match will end. If Man City wins that match, they will likely emerge as Premier League champions this season because it looks like Man City will also get a win in their last match against West Ham. If the match ends in a draw, then the Premier League champion will most likely be determined by the Goal Difference between Man City and Arsenal. However, if it turns out that Tottenham can make a surprise and win the match, then Arsenal is the one who has a big chance of getting the Premier League trophy.
Tottenham actually still has a small chance of snatching 4th place from Aston Villa but for that, they have to hope that Aston Villa will lose their last 2 matches, while Tottenham must be able to sweep 2 wins. This is like a scenario that is waiting for a miracle to happen but as long as the season hasn't actually ended, surprises could happen.
Both of the teams are under pressure to win, Manchester City have experiences in handling this kind of pressure, while Tottenham couldn't play their best performance when they play a crucial game. Aston Villa have a chance to drop points again as they have to face Liverpool tonight. If Aston Villa win, Tottenham's chance to play in Champions League next season will finally be over.