A Roadmap is not a locked release calendar. It is usually vague, it includes only publicly announceable stuff (usually greatly beautified), and is meant to be taken with a grain of salt. Not something to be taken seriously. No serious professional would ever allow his business to depend on roadmap expectations.
It is just a description of what the plans for the future are, accompanied by an estimated release plan, usually grouped in yearly quarters.
Currently, the only thing that users know about Eagle's future with Autodesk is the increased monthly/yearly cost of usage (not even ownership) and bugs. Not such a great incentive for users that are used to having software that works forever.