Jafa is the master. I love everything he does
I think CoD will be somewhat moddable, just not yet. Numerous tasks (such as skinning, making campaigns, and possibly some sound mods) will be abundant, but many larger things (like maps, aircraft, FM changes, cockpits) will not be very moddable by the community. I reallly think Maddox Games is going to be the main source of content for this sim, as well as some 3rd party stuff. This is because Oleg wants control of what gets added in for the best quality possible. Besides, if you think about it, not very much needs modded anyways. Most mods for 1946 were made to enhance the graphical experience. However, with CoD the experience is already going to be awesome! Be sure.
Edit: I've just got to ask BigPickle... Have you seen the leaked in-game vid? I very much like the CoD engine sounds opposed to any sound mods I've used in 1946. So much better IMO.