The way things are going right now, you’re more likely to see the RINOs purge the Conservatives. They’re working on it already.
If it did, then it would be a permanent minority party.
In the Democrat party, the leftists control the conversation.
In the GOP, things are good as long as the conservatives control the conversation - when the liberal Republicans start taking over, then there's trouble.
Every party needs its own "centrists" to remain electorally viable.