As of the time of this writing, IBM announced its directions related to JES3 future. For more information, see this web page.
This chapter presents arguments for technical professionals and managers about why JES2 is a better option than JES3 not only because of financial issues (JES3 requires another license fee and JES2 does not), but because most JES3 customers successfully migrated to JES2. It also shows that the migration process can be easy and low risk.
This chapter includes the following topics: