Theoretically, even Newcastle can win the Premier League - as we can see, they managed not to lose to Arsenal and City and, along with Arsenal, have only one defeat in the whole season. But the likelihood of Newcastle or United winning the championship is, of course, very small.
It seems to me that there is not much difference between third and fourth place - the most important thing is that a ticket to the Champions League allows you to hire ambitious players. So if Newcastle and United stay in the top four we will see their activity continue in the transfer market (especially I expect surprises from Newcastle).
It's all about game nothing theoretically or practically right now we have middle of the season and all four teams which are in league table can win this year's title with after beak things looking impressive for them specially now Manchester United having good start with three wins and fourth spot in league table Newcastle United is also doing good job because they hold Arsenal at their home which was good success for hem and with this now they can also feel good Manchester City is going to play against Chelsea which is looking for better strategy and positive change hopefully they will also give competition to Manchester City and things could be good for the all top teams with any team can win title in 2023.