In the last 5 matches, Arsenal have drawn 2 matches and only managed to win 3, whereas in the same last 5 matches, Nottingham forest have won all 5, and their next game coming up next week is against Liverpool, this will be a tough match, which I doubt if they can scale through with a win, but if they manage to, then they will overtake Arsenal in the league table, except Arsenal manages to beat Tottenham in their next coming game, then they can both be equal in points again.
But to be more realistic, Nottingham forest may likely lose, or at most, end up with a draw in their coming game with Liverpool.
So, Arsenal still have a better chance of maintaining their second spot on the table for the time being.
I think it's even more about Liverpool dropping points against Nottingham Forest again next week Tuesday when they travel to Nottingham Forest stadium. Even at home they found it difficult to break Manchester United, I expect a tough game for Liverpool, mind you, they lost the first fixture earlier this season against Nottingham Forest do not forget in a rush..... Arsenal will be against their london rivals who doesn't get along together ( Tottenham Hotspur ) and they will definitely maintain the second spot because I'm certain they'll get all three points against Tottenham Hotspur. The one game left to play as well would be against their rivals Everton, they won't get it easy during that fixture.