No way Nottingham Forest are not qualifying for Champions league. From Nottingham Forest down to Chelsea are over with one point. Among the four teams, only Nottingham has been consistently playing well, i don't mind seeing Manchester City not qualify because they have been poorly in form and need time to construct the squad. Newcastle may also not be coming down, Chelsea and Manchester City need to find a way to come on top.
For me it is not guaranteed, and even Chelsea, Man City and Newcastle are still be able of shifting Nottingham position. Chelsea only has a 3 point difference with Nottingham and only needs 1 win for Chelsea to shift Nottingham position.
I don't believe you if you say that only Nottingham are playing consistently while Nottingham have lost their last 2 games. The defeat is proof that there is no guarantee that Nottingham can stay consistent and still get a UCL ticket. There are 6 games left that can change something good to be very bad.
You are absolutely right, Notthingham Forest can definitely drop down in the league table, and probably Newcastle or Manchester City will go to the position since they is not any tough gap between them in the league table, this season Nottingham Forest are performing very great and trying to finish in 3rd position in the league competition and get the opportunity to qualify to the ucl next season. Nottingham Forest just have few matches to play before the season ends, they should just try and continue performing good so that they will maintain the position, because if they mistakenly drop down i don't really sure if they will finish in that top 4 anymore.
They should continue performing there good work in the competition and move to ucl next season and face other tough clubs in the competition. Guadiola as started performing very great and wining there league matches in the competition. Am sure that Guadiola most do anything possible to finish in that 4th position in the league and try to qualify to champions league next season because Guadiola won't play Europe league. Chelsea will play the Europa League next season because I don't think Newcastle and Manchester City will try to lose any point in the competition anymore, because they are challenging each other to finish in top 4 except Nottingham Forest lose points. Let see how the season will end i know who will get the chance to qualify to the next ucl next season.