I work daily with: Visual Studio, Eclipse, Xcode, AppCode (an alternative iOS IDE) and of course the current B4X IDE.
The new IDE is going to be a top level IDE. Performance, features and looks are going to be great. Really
I'm sure that not everything will be perfect in the first version (or the tenth version) however the new framework and IDE engine are much more powerful and will provide a better platform for advanced features with good performance.