The roadmap helps to identify the main stages of the project development, as well as to understand the team's plans for the future. I believe that it is useful for investors.
I read the project description
https://docs.cryptoarena.org/. Crypto Arena is a hybrid exchange that combines a lot of advantages. It is very important to carefully study all the advantages and disadvantages of the project before investing in it.
The project is developing rapidly and is actively advertised. For cryptocurrency exchanges, the most important thing is promotion and advertising, in order to have good liquidity and a large number of users.