1. Rowlet
2. Rowlet2
3. Rowlet3
4. Litten
5. Litten2
6. Litten3
7. Popplio
8. Popplio2
9. Popplio3
10. Rockruff
11. Rockruff2
12. Rockruff3
13. Rockruff4
14. Komala
15. Komala2
16. Pikipek
17. Pikipek2
18. Pikipek3
19. Yungoos
20. Gumshoos
21. Grubbin
22. Charjabug
23. Vikavolt
24. Drampa
25. Bruxish
26. Cutiefly
27. Cutiefly2
28. Togedemaru
29. Salandit
30. Stufful
31. Bewear
32. Mimikyu
33. Wimpod
34. Wimpod2
35. Bounsweet
36. Bounsweet2
37. Comfey
38. Mudbray
39. Mudsdale
40. Minior
41. Fomantis
42. Lurantis
43. Oricorio
44. Sandygast
45. Palossand
46. Wishiwashi
47. Pyukumuku
48. Morelull
49. Morelull2
50. Turtonator
51. Crabrawler
52. Jangmo-o
53. Jangmo-o2
54. Jangmo-o3
55. Type: Null
56. Tapu Koko
57. Guardian Deity2
58. Guardian Deity3
59. Guardian Deity4
60. Solgaleo
61. Lunala
62. Magearna
63. UB-01
64. UB-02
65. UB-03

Al lease 65 confirmed so far, considering they're not revealed everything yet, this gen is gonna be huge.

Also 11 new alola forms mons. We're looking at 100 new mons and 30 new alolan formes in my opinion.