York New and GI Gon&Killua

So rewatching the anime in that transition between York New and Greed Island, when a thought came to me, what if it was Gon and Killua post Greed Island training in York New? what would change? would Kurapika plan work better?

So basically im thinking like this

First Round: end of Greed Island Gon and Killua in the York New arc.

Second Round: Gon and Killua at the peak of their powers in the Chimera arc.

Bonus Round: Chimera Ant peak Gon and Killua plus most recente Kurapika and Leorio (most recent chapters).

In each round, how the arc changes?