Altcoin season will appear when we see such question appear everywhere. By now, we have not yet seen such massive question on altcoin season. It means we might have to wait for that sort of community signal appear in coming weeks or months. Don't worry because altcoin season will come.
People are always looking forward to that too much, making them pressured on this question. It will need to come, but then it will surprise you, the present keeps learning and understanding, it will be more beneficial than waiting.