NWBC 4.0 for html?

Hello,

is there already a NWBC 4.0 for HTML client? I want a NWBC 4.0 user interface for the Web Client (for html), but can not find the information, if there is nwbc 4.0 for html released  and if so, what base component needs to be updated or what else is to do. If i open the NWBC via browser, it always starts the NWBC 3.5 for HTML Version. The only one I've found is to switch on the Corba Theme via NWBW_CFG (se16) as mentioned in this blog post:

http://scn.sap.com/community/netweaver-business-client/blog/2012/09/11/a-new-user-experience-with-sap-netweaver-business-client-40

Thanks