Licensing is decided to be GPLv3 + Commercial. This means LGPL components will not be able to link to it. (should not be needed since we emphasize offline/build time shader processing in Qt 6 and beyond)
Qt Quick 3D may want to link to this module for some time during H1/2020: that is no problem since Quick 3D is GPLv3 as well.
The two third party dependencies are Apache 2.0 and MIT/BSD(-like?). Apache is not compatible with GPLv2 but not a problem otherwise.