I just checked the table to see that Juventus is on 5th position with 37 points, two points behind Lazio. Since Juventus is a strong club, they will likely overtake Lazio with time, because I don't think that Lazio will be able to maintain the 4th position till the end of the season. Perhaps, the fourth position is open for the clubs on 4th-8th position on the table currently due to little point difference.
To be honest, I don't think Juventus will finish in the top four in Seria A this season. They were busy with their unbeaten league record and even failed to win against a weak club that would have given them more league points. Two points separate Juventus from Lazio, but we're not sure if they'll keep winning after Napoli broke their unbeaten record. Lazio, on the other hand, is capable of maintaining the position until the end of the season, but let's wait to see which team will take over the position at the end.
Milan are clearly not in great condition recently. Their results with Sérgio Conceição so far shouldn't be misleading. They might seem like they are winning most of their games but you must have watched the way they play as well.
They haven't been playing that impressive honestly.

In nearly all of the games they won, they had to make a comeback. Just like the one they made against Parma the last time. The last 2 goals came in the stoppage time which was too extra.

This is the odds for the Derby della Madonnina. Would you trust Milan against Inter now? I wouldn't honestly. Instead, I would go for my mostly preferred betting option recently,
BTTS & over 2.5 goals @2.10.

We should not underestimate AC Milan when playing against Inter Milan, since they have defeated Inter Milan twice this season. Ac Milan won the first league game 1-2 at Inter Milan's home field, and they also won the Supercoppa Italiana with a comeback that included three goals in the second half. AC Milan's performance under Sergio Conceicao has been inconsistent, although they are doing better than they were under the previous manager. This is a derby match between AC Milan and Inter Milan, so one should avoid betting on any team to win. I agree with your prediction since both sides will never play without scoring a goal against each other.