As per the title and assuming all goes well, a new version of TextMesh Pro will be included by default in Unity 2018.1. Most likely starting with Beta 2 or Beta 3. (See Updated Notes below about 2018.2 and additional information )
This new version of TMP will be made available via the new Unity Package Manager (also part of Unity 2018.1). These new Unity Package Manager (UPM) packages are shared between all projects. This new version of TMP includes source code and uses the...
Migrating from Legacy / Asset Store to Package Manager Releases
This new version of TMP will be made available via the new Unity Package Manager (also part of Unity 2018.1). These new Unity Package Manager (UPM) packages are shared between all projects. This new version of TMP includes source code and uses the...
Migrating from Legacy / Asset Store to Package Manager Releases