Does anyone know if Trane will be coming out with a LonWorks control for their CSC units?

If not how have you all interfaced a CSC into an LNS LonWorks network?

The application I am looking at has an old Tracer 100 L panel with the CCPs and about 60 VAVs (Probable VAV-1s). What would be the most cost effective way to change this building over to a LNS LonWorks building?
Notice I highlighted cost effective because this will be the deciding factor in this project.
We are looking at a basic Summit upgrade versus a LNS LonWorks up fit.
Any ideas would be helpful.
Thanks
scepter