@ Jenisch
To answer your question Jenisch, it would be realy important, if there was a war in the west or without any war in the west?
If we took the scenario without any war in the west and we look at the numbers, I would say a big yes!
The LW lost someting about 3000 first rated frontline a/c's (Bf 109E, Bf 110, Ju 87, He 111, Ju 88, Do17, Do15 and Ju 52)at the french campaign, BoB and the Mediterranean area till June 1941.
To this losses you can coun't the JG 26, JG 2 (France June 1941), the X Fliegerkorps at Kreta (June 1941)and air fleet 5 at Norway (June 1941 plus some NGZ and ZG at Germany (June 1941).
So if we take this conservative the LW could deploy 2500-3000 more first rated frontline a/c's at June 41 against the Soviet Union.
That would be near 100% more a/c's then the original deployed 3000 a/c's.
So the LW would attack with something between 5500-6000 a/c's at June 22.1941.
To my opinion this would be a very very big plus to the break through ability of the Wehrmacht on a tactical level and the possibility of the VVS to regenerate after the very very big losses at the first days would be much more difficult on a strategic level. The LW would have near 3000 fighter in the air, so the air activity of the VVS could be hold to zero. Also there would be much more a/c's on hand to attack the soviet supply lines!
The key element in this scenario would be how fast the Wehrmacht could be benefit from this break through ability and could control important junctions, harbour etc. The real question would be how long and far could 5500- 6000 a/c be supplied.
To my very own opinion it would be very very importnt to control the Baltic and the North of the Soviet Union (till Leningrad) very fast (July/August 1941) to have the possibility to ship supply to the Baltic and Soviet Union East Sea harbour, that would be a real important benefit to the supply lines. Everything else is speculation but with 2500-3000 more a/c's there would be other possibilties as in the real campaign.