At the Moment it's only possible to read SWX2015.
Also it isn't possible to load .x_t also they are generated with Parasolid-Version 24. Non-supported System.
Changing the Header to one out of SWX2014, it ist possible to read in.
The source-System cannot be the only identifier to allow or block an Import.
There must be a Change to supported Parasolid-Version without checking the source-System. There are a lot of Systems which can generate Parasolid-Data (p.e. CAM-Systems)(x_t) but
you can only load the once you have a Interface bought. and this are only 4 systems
SWX, SolidEdge, UG and I-DEAS
I hope there is coming up soon an M060 for 19.0 which Supports the new (1 year old) Version of SWX
my suggestion is: contact PTC Support and ask them when Creo Elements/Direct will be able to open Solidworks 2016 models.
BTW, Creo Parametric 3.0 M100 is able to open Solidworks 2016 models.
I asked the Support and got the answer. It would be available with DirectModeling 20 in Spring 2017.
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