Mitchell Ragsdale:
Curious as to the migration options as well from SharePoint 2013 myself. Other than a few tests where we moved a list and document library, I didn't see the options to move an entire site. We're considering just opening up Liferay Portal and letting users self-register and move over their own content in due time. We've not found a good migration solution for hundreds of sites.
I'm also curious if it's possible to move over WordPress content?
It all depends on the complexity of the current Sharepoint solution. Liferay's API can be used to create content and sites - but you'll also need to read the Sharepoint-side in order to know what to import. Sharepoint sites that I've seen have been notoriously complex, in terms of organization, permissions, and other aspects. If all have the same kind of complexity, you might be able to write a script to import them. If they're all different (because all grew organically) it might be harder.
There's an option though where you can go without self-registration: Liferay integrates with LDAP (AD among it). If you have your current users in such a directory, you can at least provision them with the same credentials that they already use.
For importing Wordpress, you might want to start
here or
here
