For now, Nottingham is 6 points ahead of the nearest team, if you look at that I think they are still not comfortable in 3rd place and there is still a possibility that they will lose their place because in the remaining matches they will face strong teams so that losing points is still open for them. Aston Villa, Everton, Tottenham and Chelsea are not easy opponents to beat. But if it is to secure a UCL ticket, yes they have a great chance considering that there are 5 tickets that will be distributed in the Premier League.
You really know the drill, this is absolutely not far from what I was saying about Nottingham Forest place not secured. They 6 points ahead of Manchester City who's currently behind them and tonight Chelsea has a game and they are currently on 49 points and in 6th position if they happen to win the game, that's 52 points, that simply means that Nottingham will be ahead of Chelsea with 5 points and that's still not all. Seriously, the 3rd spot isn't still secured yet by any team because anything can happen at any moment.