The patch will be with the above changelog at least + the Italian-France fix (stronger french alps forts).
Army restructuring tool should work I guess, I don't know how it works but I used one for I.C.E. so I believe it is compatible with anything (since it should only mess with the savegame).
Brandenburgers and Fallschirmjager grant bonus to the divisions they are attached to because of their terrain stats. See the +60% combat in plains for instance, that means a division of Inf+Inf+Inf+Commando will have 0+0+0+60/4 = 15% combat bonus in plains etc. for all terrains.