Once the SuperNET support is added by a coin, then not sure why they would want to stop getting revenue sharing. It is not like the SuperNET is charging the coins, rather SuperNET is revenue sharing.
Also, once people are using something and liking it, the release of new tech that is "better" doesnt mean everybody just stops using it. The network effect would keep people using it. Regardless of which specific tech is most popular, the SuperNET will presumably be offering it, so as such it represents a diversified approach as opposed to any specific component