which is why, along with the fact they could not properly equip them, they could park Romanian troops on pre-war border of Dniester River? do you think that might be enough of a concession from Brest-Litovsk? (albeit my speculation is that Germany has captured Leningrad)
I'm sorry but I don't quite understand what you're saying? Do you mean that the deal would only require the Soviets to relinquish lands west of the Dniester? I could see the Soviets considering such an offer if things got bad enough, but it then falls back to the fact the Germans would never have accepted it.
As George Kennan pointed out in Russia and the West Under Lenin and Stalin, "The settlement accepted by the Allies at the end of the Russian Civil War--the arrangement, that is, that prevailed from 1920 to 1939--was considerably less favorable to Russia, territorially, in the Baltic-Polish region than that which the Germans imposed on Russia in 1918 [at Brest-Litovsk]." The idea that Hitler in December 1941--and a Hitler far more successful than in OTL, in that Leningrad has fallen--would settle for a peace remotely like this is...breathtaking.
for MY speculation it was for fairly expansive gains in the north, capture of Leningrad and ceding everything up to the White Sea, but a withdrawal to the Dniester River in the south. also the remainders of Soviet fleet in the Baltic and White Seas.
would note that German estimates were that Polish oil production could be increased greatly (incorrect but that was their thinking) and they would be holding that.