It's too far to predict btc position in 2030. But I think there will be many things happen with BTC from now on till 2030. And I think supply will caped if BTC still survives.
Well, in my opinion I don't think is had for one to predict what will happen to Bitcoin in 2030 since all the prediction are just based on assumption which may come to fulfilment or not. There no need for you to panic as to whether Bitcoin will survive till 2030 or not, this is because Bitcoin has come to stay and nothing can stop its existence.