Nearly all of these I do are titled Exhibit A, as an attachment to an easement dedication and they're recorded together. Without the dedication, acceptance and recordation, whether by plat or by document, the map in of itself doesn't create anything so I don't get too hung up on 'Proposed'. It's just a form of legal description and if the dedication isn't accepted, nothing comes of it. No reason to record my map if the easement falls through.
In my local jurisdictions we label the easement, such as the standard utility easement bordering new right of way, as 'XX' utility easement. Then in the dedication we define the dedication of each easement such as the XX' utility easement and ..... are herby dedicated <insert language here>
If it's a separate exhibit I'll always put proposed or existing notes on easement.
Not an option available everywhere, but the best way to do this is to create the easment with the plat, then there is no danger of a non existent easment showing up in a recorded plat.