Cardano will grow and become one of the most popular projects. But before this time you need to live. Especially since Ether, the main competitor, is not going to give up. Over time, Cardano will be in his place.
The maximum price for an ADA coin was almost two dollars. If you are looking for a large increase, for example, at six dollars, then you are deeply mistaken. Think about it, if this happens, then this platform will break out almost to the first place. Thus, the price may rise slightly above two dollars, however, this is the limit, in my humble opinion.