Found a list of new IPs since 2000
1. WarioWare series
2. Eternal Darkness
3. Mario & Luigi RPG (They?re the same characters but it?s a different series than Paper Mario or Super Mario RPG)
4. Golden Sun
5. Advance Wars (It was also on the NES and SNES, but it had a ?rebirth? on the GBA)
6. Luigi?s Mansion
7. Pikmin
8. Xenoblade Chronicles
9. Baten Kaitos
10. Pandora?s Tower
11. The Last Story
12. Wii Sports
13. Wii Fit
14. Wii Play
15. Mario vs DK
16. Soma Bringer
17. Nintendogs
18. Elite Beat Agents
19. Rhythm Heaven
20. Fluidity
21. Endless Ocean
22. Magical Vacation/ Magical Starsign
23. Excitebots/Excite Truck
24. Legend of Starfy
25. Chibi Robo
26. Steel diver
27. Fossil Fighter
28. Art Academy
29. Glory of Heracles
30. ASH: Archaic Sealed Heat
31. Electroplankton
32. Drill Dozer
33. Art Style
34. Line Attack Heroes
35. Wii Music
36. Wii Party
37. Flingsmash
38. Disaster Day of Crisis
39. Captain Rainbow
40. Battalian Wars
41. Geist
42. Odama
43. Hamtaro
44. Meteos
45. Giftpia
46. bitGeneration
47. Art Style
48. Zangeki no Reginleiv
49. Freshly-Picked Tingle?s Rosy Rupeeland
50. Zekkyo Senshi Sakeburein
51. Jet Impulse
52. Chosoju Mecha MG
53. project hacker
Ok. So if we remove the ones that include Mario/Zelda chars and the entire Wii - Whatever line. Oops. That's still more than 40.
It's not as if a lot of other companies are flogging their IPs too. Assassin's Creed, Halo, Uncharted, God of War are all fairly new IPs that have quite a decent amount of games too. And then you have the likes of Call of Duty and Battlefield plopping up too.