I agree, now City will be able to rest more, since they are left without the Champions League, and we will see the team that we saw at the beginning of the season, when they could beat any opponent. Moreover, Guardiola will now make changes and they will sell some players, this should also create competition for a place in the starting lineup, which should also have a good effect on the results. City must get into the top 4, for them this is a mandatory condition for the end of this season.
Of course city May likely end in the top 4 this season depending on how consistant they're because newcastle is also trying so hard to make it up to the top 4 of the premier league table. Moreover, there is no point difference between the both teams manchester city is just topping newcastle with goals, so with this I think the possibility of manchester city ending in the top 4 this season is still under probability.
This is Manchester City's own decline, Manchester City's players are playing badly and destroying themselves, and if Manchester City plays well, it can go to the top, but it does not have the power to play well and improve the record that other teams do, which will improve their performance and record. Both these teams should work hard because between them only one team will go up which is Newcastle because Newcastle's matches are not so difficult outside it's performance is weak and Manchester City's matches are difficult and their performance is good which is why both teams can't go up. If they win some matches and perform well, we can be optimistic but the way they are struggling, there is no hope.It is a loss for them to win one match and lose or draw with a poor performance which they have been doing for months. They should play it in the same list and improve the record.