There will be more added values for Archicad with EcoDesigner Star than the structural features that Graphisoft is trying to integrate in Archicad actually. I know the thermal bridge performance requirements are very high to meet and there are too many obstacles with EcoDesigner Star. The best thing to do is to put it on the market as a beta version so that we can help Graphisoft improve it.
It's about a bad idea to stop developing it!