In Update 17.1, you will see the new Open PDF as Vector Geometry option in the DWG Open Options dialog, Advanced section.
With this option, you can open vector data available in a DWG file as design elements like Lines, Line Strings, Curves, Polygons, etc. You can save a lot of time as this option eliminates the need to redraw the vector data in the DGN.
The only prerequisite for using this option is to set MS_IMPORT_USINGADOBEPDF to 0 before turning this option on. Restart your MicroStation session after setting the configuration variable value, for the changes to take effect. Once done you can use this option in your workflows.
To find out what else is new in this update please watch New in MicroStation Update 17.1.