The essence of native development differs greatly than that of hybrid development.
- In native development Worklight provides a set of APIs that allow you to work with the Worklight Server and the features that surround it (as listed in the question you've linked to),
- Whereas in hybrid development you also get features related to the client-side. These client-side related features are meant for web development, so there is no correlation between the two (native and hybrid).
what kind of features are still missing while developing a native
mobile app in the realm of business applications & banking tools using
Worklight (are JSONStore and Direct Update still unavailable? There
are further features missing?);
So the list has not changed much:
Starting Worklight 6.2, JSONStore is supported in native development as well
Push Notifications in WP8 is now supported in native development as well
As for Direct Update... this feature is meant to update web resources, not native resources. Also, such updating of native resources is not allowed by the platform so there is no Direct Update support in native development.
what are the CONs, in general, of working with such framework despite
of using native SDKs (like the cross-platform struggle to keep up with
the native platform roadmap, framework infrastructure weight,
performance issues, general trade offs, etc.).
You handle native development as you would always handle it. The framework only provides you with the tools to use what Worklight provides on the server-side.