Yeah there is no problem with the release at the scheduled time. Its just a problem that will occur if the Germans do something that may not have been thought of during testing. That is an offensive Northward into a mass of fixed units that do not have a 'T' release tag. It means the Germans can encircle large pockets of fixed units and kill them with no threat from a mass of fixed Russians that just sit by and do nothing. Anyway its nothing a house rule won't fix. But I would warn any Russian players to get an agreement from the Germans before hand that such a strategy will not be employed.