In the international parlance of the crypto world, the roadmap refers to the exact schedule that reflects the goals of a project, a coin, or a token in chronological order and more or less strictly.
However, with most cryptocurrencies, it is more the rule than the exception that firmly defined roadmaps are not adhered to. Shifts and delays of several years have already occurred in many blockchain projects. The most well-known example of numerous delays was the Ethereum Merge.