A timeline is a structured process which is part of any project development. Saying it will be delivered by March 10th may be not something Dan is looking to do. But for a timeline of events with “expectation” is normal as it also lays out the development process of what is being developed in what order as well.
For example if there are nodes in testing that is part of a timeline of events. Even if it makes no difference to a delivery date. It gives a progress report that is currently on-going and what is being worked on. Even if there is no end date (as it would no doubt be in constant testing as new things develop).