I'm not sure how there could ever be a 1.5 production pack, unless they lock in the existing 1.5 beta pack with the final versions of the mods in that pack.
I guess i don't expect the Modders to bother with any more updates to 1.5 (or 1.4) as we move into 1.6
And if i remember right- there is STILL a option to run the FTB BETA pack (1.3?)
Ah, I get you. I'm fairly sure a 1.5 pack will consist of the final 1.5 versions of all needed mods, bugs are always going to be an issue on some level. Keep in mind 1.6 only just released, chances are modders will still be working on a 1.5 version (Which seeing as 1.6 was known to be releasing, I'd expect would mostly consist of bugfixing.)
Either way, if Wyld says a 1.5 production pack'll come at some point, I suspect a 1.5 production pack'll come at some point. That's all I'm fussed about.