Yes, Luna will definitely hit $100. The all-time high is nearly $100 and it will probably surpass $100 in 2022. Luna will probably hit $1,000 one day but that might take a few years longer and depends on how quickly there is a mainstream crypto adoption. Luna will probably hit $1,000 in 2024 or 2025.
The token Luna is mainly used on the blockchain Terra but can also be used within other blockchains like Ethereum in the form of wrapped Luna(wLuna). The Luna coin is primarily used for governance and mining within the Terra ecosystem.
Why will the price of Luna rise to $100 or even $1,000?
The Terra blockchain has many applications including banking and payments. These transactions will usually be used in a stablecoin like $UST. As more and more people use the $UST for things such as payments there will be a need for a greater supply of $UST. Every time there is a new $UST created, somebody needs to sell some Luna and they will usually sell for a profit.
People who hold Luna will assume the risk of price volatility that is associated with cryptocurrency and people who hold and use $UST have a currency that is tied to the United States Dollar and can use it for day-to-day transactions.
It is important to note that the price of Luna can go up or down but over time the idea is to reward people for providing stability to the platform.