Eh I'd say best case scenario is more like:
1943: North Africa cleared, Sicily invaded, Luftwaffe gets 365 days breathing space and slight boost compared to OTL. Japan driven back while the U-Boats get the lions share of the burden. Japan driven across the Pacific.
1944: Air War over Europe intensifies, Japan slowly driven to the Home Islands. Overlord is cancelled, no doubt. Too many Axis troops can be sent West as a counter (even slightly more than OTL is a problem which needs to be attired) and all the excess capacity goes to defeating Japan.
1945: The Atlantic is a victory as even with new U-Boats the WAllies have an overwhelming advantage. Jet fighters are ramping into production so you have the first jet battles over Europe. The Home Islands are blockaded*
1946: Both sides are attired, but the Nazis are slowly being ground down, even though WAllied air casualties are much higher TTL. Nazi air defences are marginally improved, but the skies over Inner Germany remain contested while France and the Low Countries are won for the WAllies. Preparations to invade Europe begin.
1947: Overlord/Whatever as the WAllies invade. Brutal ground fighting, but the WAllies approach the Rhine by winter. Nazi counter attack is broken up, and risings begin across the East as the Nazis are forced to ship troops West.
1948: WAllies reach the Rhine. In an atomic bombing campaign they crush Arnhem, Hamburg and Nuremburg. The Nazis throw everything they have into the air, but soon the WAllies are cracking German troop concentrations with nukes. Blitz across Germany, Berlin is encircled and crushed. Victory in Europe by winter 1948.
*Japan might be more drawn out if you invade the Home Islands. No Soviet Declaration of War is a factor, and that might force the WAllies to invade Kyushu with all the nightmare that entails. If Japanese forces in Korea/Manchuria fight on it sucks away more resources that could slow down things in Europe.
I just don't think that you could end the War in Europe before 1947 without the Soviets they ground the Nazis down so much. Doing the same thing with air power would take longer, and dropping the bomb before the invasion of Germany proper wouldn't be a knockout blow without an army on the Rhine.
Your scenario has a few problems.
The basic outline of 1943 seems reasonable, apart from the Luftwaffe getting a breather. The aircraft from the East, which did not amount to anything close to a decisive number, will be divided between Defence of the Reich, Italy and the Med, an early Steinbock and a good sized Luftflotte in the Caucasus; additionally, there is Norway and European Russia to garrison.
The Allies don't seem to be reacting or doing anything different despite the elimination of the Soviets. This doesn't make too much sense. Plans would be altered and the scope of mobilisation increased in the USA, giving more forces for 44 and 45.
1944 comes around and the Allies haven't done anything new in a year to respond to the radically different circumstances of the war. The air battle only intensifies - you will need to present an argument and evidence as to how and why the Luftwaffe delays its effective defeat.
Sending additional materiel to the Pacific doesn't make sense with an increased threat in Europe. If anything, the air and land forces committed to the ETO would be increased, particularly the former.
The level of damage done by a full year of strategic bombing on Germany would be considerable; this is in place of invasion prep over France. The Luftwaffe would be smashed, its oil supplies smashed and transport heavily damaged.
In 1945, the one logical thing is the blockade of the Japanese Home Islands. The Type XXIs will be too little, too late to interfere with Bolero and the U Boat threat had been broken by mid 43. Atlantic victory comes much earlier and isn't dramatically affected by the PoD.
Allies jets don't yet have the range to go over Germany and Me 262 production will be hampered by the CBO. With Bomber Command having up to 1500 Lancasters, 400 Hastings and 300 Mosquitoes available and the USAAF deploying upwards of 4000 heavies (3300 available to the 8th and 15th in May '45; this would no doubt rise if bombing was the primary means of striking Germany as different to @, not to mention the B-29 force), there is a lot of conventional bombs raining down on Germany.
Meanwhile, nothing changes the schedule of the Manhattan Project, which will be turning out bombs by the second half of 1945.
Nazi air defences are more than marginally improved if they manage another 36 months of contesting air superiority over Europe - they are miraculously transformed!
It will take more than ~700 extra fighters in 1943 to radically change the course of the air campaign in Europe and it will need a bally big change to shift the breaking of the Luftwaffe fighter force from early 1944 to 1947.
http://www.alternatewars.com/BBOW/Stats/WW2_US_Cancellations.htm
Aircraft cancelled after VJ Day is the relevant section. 3217 P-38s, 5934 P-47s, 5773 P-51s, 2583 P-80s (+1000), 5241 A-26s, 5168 B-24s, 1889 B-32s and 3526+ B-29s comprises just a tad of air power.
There aren't comparable resources on Britain that I have come across, but extrapolations can be made from available data on monthly aircraft deliveries in 1944.
The bombers won't win the war on their own, but the CBO will destroy the Luftwaffe and allow the heavies to be turned loose on the German Army along with substantial tactical airpower. Once the Allies are ashore in Northern France and have a secure lodgement, victory on the ground will follow in 12-18 months.
The atom bomb won't be a magic bullet, but it is a weapon the Germans cannot counter or match. It makes truly effective strategic bombing possible and they would be coming at a great rate, or in one overwhelming blow.