It's quite difficult to answer, but it is possible to reach ATH next bull run. But perhaps, the top 10 coins first will increase higher, and then the other coins will follow to increase. The altcoin can rise so high, but we don't know when the bull run will come, and it still a mystery for us until now.

I am not sure with the coins out of the top 100 that can grow 50x because the coins are hard to increase, but perhaps, that coins can increase if the pump is coming. The coins out of the top 100 will have the opportunity to grow for once if the moment is right, especially if some groups pump that coins.