Now that the Londoy Toy Fair is in full swing, news about what's coming from Cobi in 2020 seems to be updated every minute.
Here's what I found out from various sources so far (some sets or set numbers appear twice, so there may be some changes):
2033 - American Airborne Division
2034 - Afrika Korps
2035 - Warsaw Uprising
2038 - Vietnam War
2230 - M151 A1 MUTT
2231 - Ford GP
2232 - Air Cavalary - Huey
2233 - M60 Patton
2234 - T-55
2235 - PT-76
2236 - M113 APC
2237 - Boeing CH-46 Sea Knight
2238 - Mikojan-Gurewitsch MiG-17
2399 - U.S. Army Truck 1/4-ton
2400 - Ford GP
2525 - Rommel's Mammut
2526 - Sd.Kfz. 250/3
2527 - Sd.Kfz. 121 Panzer II Ausf. F
2528 - Sturmpanzer II
2529 - Sturmgeschütz III Ausf. D
2530 - 60cm Karl-Gerät 040
2531 - M12 Gun Motor Carriage
2532 - 60cm Karl-Gerät 040 Thor/Ziu
2533 - M4A3E8 Sherman Easy Eight
2534 - Sd.Kfz. 101 Panzer I Ausf.A
2702 - T-34-85 Rudy 102
2703 - Panzer VI Tiger
3061 - T-34
3062 - Pz.Kpfw. III Ausf.J
3063 - M4 Sherman
3064 - Churchill I
3086 - Aircraft Carrier Graf Zeppelin
3087 - Aircraft Carrier Graf Zeppelin (Limited Edition)
4815 - USS Enterprise (CV-6)
4816 - USS Enterprise (CV-6) Limited Edition
4817 - Battleship Scharnhorst (Limited Edition)
4818 - Battleship Scharnhorst
4819 - Battleship Bismarck
4820 - HMS Warspite
5710 - Junker Ju-52/3M G5E
5711 - Junker Ju-52/3M G4E
5713 - North American B-25 Mitchell
5715 - Messerschmitt BF 109
5801 - Mirage 2000-5
5802 - Rafale C
5804 - F/A-18E Super Hornet (Top Gun Maverick)
4805 - F/A-18E Super Hornet Limited Edition (Top Gun Maverick)
5806 - North American P-51D Mustang (Top Gun Maverick)
5807 - AH-64 Apache
5808 - CH-47 Chinook