One new thing that I've found:
009 Tp97 Chi-Ha Kai - according to Concord 7004 - "Tank battles of the Pacific war 1941-1945", first two were used in a Corregidor landing (5/42) (now 7/42). However, they were used in significant numbers from Saipan campaign in mid-44.
143 M3 Stuart - as above, officially serving from 4/42 only and used in a Corregidor landing (now 1/42). Unless we assume without evidence, that some might have been used just after capturing.
It would need a change in formation 110. Or a new formation might be created, since the Corregidor unit consisted of only two Type 97 Kai led by one M3. Otherwise, M3 included into the 3rd Company of the 7th Rgt were presumably organized in the same pattern as typical Japanese tanks (three-tank platoons, like formations 02 and 08?).
One more small thing: maybe
453 Type 1 Chi-He (class 59, for Home Defence units) should be available until 12/46 instead of 12/44? After this date it's available only as unit 10 (class 105) in less numerous Japan Def Tanks platoon.
I won't repeat former suggestions, apart from IMHO most important one:
333 M-H II - it should be Mk III. Photo of Japanese cars is at
http://www.network54.com/Forum/330333/thread/1133122529 (now it has a poor picture of desert Mk II). It also seems from the photo, that they have Boys ATR. Apparently they were used until 1945 (caption of the photo at
http://www.overvalwagen.com/armoured3.html )
Michal