I finally took the time to update the upcoming release date (for PC games at least), so you should now have much more accurate dates - but don't forget that these dates are given by the publishers and change often, so take it for what it's worth
The US dates are now almost 100% done - I'm still waiting for several dates for UK releases, so there might be a few things left to change.
Here are some of the highlights for US for the upcoming weeks:
25 February 2003 Harbinger © Dreamcatcher
25 February 2003 Heroes of Might & Magic IV: Winds of War © 3DO
25 February 2003 Master of Orion III © Infogrames
1 March 2003 Aquanox 2: Revelation © JoWooD
4 March 2003 1503 AD © Electronic Arts
4 March 2003 IGI 2: Covert Strike © Codemasters
4 March 2003 Metal Gear Solid 2: Substance © Konami
6 March 2003 Freelancer © Microsoft
10 March 2003 Enclave © Vivendi
11 March 2003 Praetorians © Eidos
14 March 2003 BloodRayne © Majesco
14 March 2003 Gothic 2 © JoWooD
17 March 2003 Indiana Jones and the Emperor's Tomb © Lucasarts
18 March 2003 Rainbow Six: Raven Shield © Ubi Soft
18 March 2003 Rayman 3 Hoodlum Havoc © Ubi Soft
18 March 2003 Vietcong © GodGames
24 March 2003 Delta Force: Black Hawk Down © Novalogic
25 March 2003 Devastation © Groove Games
25 March 2003 Neverwinter Nights: Shadows of Undrenrtide © Infogrames
25 March 2003 Pro Race Driver © Codemasters
1 April 2003 Blitzkrieg © CDV
7 April 2003 Red Faction 2 © THQ
8 April 2003 Tomb Raider: Angel of Darkness © Eidos
8 April 2003 Etherlords 2 © Strategy First
14 April 2003 Star Wars Galaxies © LucasArts
18 April 2003 Tropico 2: Pirate Cove © GodGames
22 April 2003 Rise of Nations © Microsoft
1 May 2003 Warlords 4 © Ubi Soft
6 May 2003 Harpoon 4 © Ubi Soft
13 May 2003 The Sims Superstar © Electronic Arts
15 May 2003 Enter The Matrix © Infogrames
20 May 2003 Star Trek: Elite Force 2 © Activision
20 May 2003 Medieval: Total War - Viking Invasion © Activision
27 May 2003 Breed © CDV
27 May 2003 Colin McRae Rally 3 © Codemasters
...and much more
Go
here for the complete list.