Much depends on how the team will implement everything, you can promise a lot, but not everything will be done.
In the realities of today's market, promises of investors alone will not attract. If the project has no real development and real coding, then no one will invest in such a project.
Of course not who does not want to risk their money. But since no one gives guarantees, investors will try to postpone their investments as much as possible until it becomes clear that the exchange is almost ready, but the price of the coin has not yet soared.