Hello Alejandro,
first of all let me thank you for your reply. I understand that there are still discussions goging on at JBoss but I have to admit that I can't understand how you can make a kind of announcement regarding jBPM 5 if you still don't know about the future of jBPM 4.x. With respect to the original roadmap jBPM 4.x was jBPM 5 in developement - stable but not with the complete feature set aimed at.
Please also pay attention to my comments on the developers' list. I will be glad to get in dialog with you on the list.
Good luck
Sebastian