I was wondering. I'm not a cryptographer, but can transactions be wired through another coin?

So if Monero wanted to stop bloating/scaling all together, is it possible to create a 2nd temporary chain(coin) linked to Monero, and have Monero's transactions go through there?

So for ex: Monero devs make another coin purely for transactions called Mon. Once Mon has bloated enough, then they replace Mon with another coin called Mon2, etc etc, or Mon automatically does this for itself.

Shouldnt that allow Monero to scale up to Visa levels if it can be implemented?