Cryptocurrency prices are highly volatile and can swing wildly from day to day. As such, predicting the future price of a particular coin is difficult, if not impossible. That being said, there are a number of factors that can influence the price of Terra Luna in the future.
Demand for the coin is one major factor. If more people want to buy Terra Luna than there are coins available, the price will go up. The same is true if fewer people want to buy the coin. Other factors that can influence the price include news events, changes in the underlying technology, and even rumors.
All of these factors make it hard to predict the future price of Terra Luna. However, at the time of writing, the coin is trading at around $0.40. This price could rise or fall in the future, depending on the factors mentioned above.