Find a runtime environment that will ship on every major device this year. Any language that can (relatively) cleanly target that runtime could be the next JavaScript in 10 years.
But your question is equivalent to “what Nation could be the next United States”.
Possible serious answers to your question... which language might be on every device in 10 years... some successor to Solidity might Trojan horse it’s way in. If Facebook built a, like, a “Facebook Platform” or something like that, that could be on every device. Other than that, it’s hard to imagine.
JavaScript came from an era of global platforms. That’s over, now we’re in the era of fractured platforms. I don’t think we’ll see another global platform in a long time. It would need a major new selling point (like Solidity has) that can’t be replicated on existing platforms.
But your question is equivalent to “what Nation could be the next United States”.
Possible serious answers to your question... which language might be on every device in 10 years... some successor to Solidity might Trojan horse it’s way in. If Facebook built a, like, a “Facebook Platform” or something like that, that could be on every device. Other than that, it’s hard to imagine.
JavaScript came from an era of global platforms. That’s over, now we’re in the era of fractured platforms. I don’t think we’ll see another global platform in a long time. It would need a major new selling point (like Solidity has) that can’t be replicated on existing platforms.