It will be a huge upset and a big joke if Maddalena beats or knocks out Islam

I can predict that Topuria will quickly lose interest to him. That is why Topuria should start building a background story against lightweight contenders. He has already conflict against Peddy, but the rest of the division does not hate him yet
Btw, remember when people were hyping Mask vs Zuckerberg fight? Topuria and Tsarukyan are both rich or from rich families

We might get mini version of rich vs rich fight

Jack Della Maddalena knocking out or just beating Islam is the worst possible scenario for Islam. I mean, he will be left without a belt and then imagine the bullying from Ilia Topuria when Islam starts begging for lightweight title.
Well, I do not dislike Makhachev. He really took a very risky step in his career but so did Topuria to be honest. Anyways, I would love to see Topuria VS Makhachev, either in Lightweight or Welterweight (but more likely in lightweight because welterweight sounds too brutal and unfair for someone as short as Topuria and as tall as Makhachev).
Funny how Tsarukyan is ignored by many. In the past Tsarukyan vs Makhachev was the most desired fight in lightweight. Now its Topuria vs Makhachev and many have forgotten about Arman. All I can say that Arman has wasted his opportunity to become a champ (or wasted chance to become a champ earlier). Forever number two

Tsarukyan is building his career so stupidly right now, if people start to discuss that Topuria vs Pimblett can be the next fight. From side it looks that others will now build a series of wins and will have opportunity for a title fight, while Tsarukyan yawns.
Tsarukyan is ignored by many because he earned it and he deserves it. We all had so high hopes on him to see him against Makhachev, it was a dream fight because he almost beat Islam in his first matches, so now, after years, it would be a very interesting when both, mature wrestlers would go against each other but instead, he acted like a crybaby and ruined the match in the last day.
I'd really love to see Topuria vs Tsarukyan too and I'd really love to see his fights but the reason why I and many people completely ignore him is that he has to earn that again. If he makes weights and beats two fighters, I'd happily watch him fight for the title.