Sharepoint - Direct upgrade from SharePoint 2013 to 2019

Actually, It's an early question, where there is no any published info related to the SharePoint 2019 yet.

But what is expected based on the previous SharePoint upgrade path process,

There is no direct upgrade path from SharePoint 2013 to SharePoint 2019. you should upgrade first to SharePoint 2016 then to SharePoint 2019.

Meanwhile, what I am sure, the direct migration process can be achieved by using 3rd party tool like:

• Sharegate
• Metalogix
• AvePoint

So, let's wait ( expected Mid of 2018) to see :)

Guidance on upgrade to SP2019 has now been published on Microsoft Docs: https://docs.microsoft.com/en-us/sharepoint/upgrade-and-update/upgrade-from-sharepoint2013-to-sharepointserver-2019

Microsoft supported upgrade path is DBAttach method for Site Collections and requires an intermediate SP2016 farm:

The upgrade scenario has not changed in SharePoint Server 2019. There is no direct upgrade path from 2013 to 2019. To upgrade to SharePoint Server 2019, you must upgrade SharePoint 2013 to SharePoint Server 2016, and then upgrade to SharePoint Server 2019. Your databases must be at a SharePoint Server 2016 RTM version or higher when you upgrade to SharePoint Server 2019. Any database with a lower version will be locked and upgrade will not start.

Too early to respond, but i would recommend keep eye on the SharePoint North America conference which will be in May 2018. I am hoping we will get more information and beta version information.

But as per the experience and MSFT last migration practice, I am guessing, their will be no direct migration path from 2013 to 2019. You have to upgrade to 2016 then migrate to 2019.

otherwise you can use 3rd party tool.