Gentleman,
As far as I know, Tamiya released only two of the new tooled zeros, so far. One can see by the parts breakdown, that there others planned. The two are a A6M5, Model 52, and an A6M3a, Model 32 (?).
I would LOVE to see an A6M2 Model 11 or 22 myself....or a "Hamp".
But I have to say also, even the older kits from the 1970's are still pretty good, and with a little detail work here and there, can be built into quite a fine looking model.
The kits from the 70's should run about $15-$18, while the newer kits are closer to the $45 range.
The 1:72 kit is freaking awesome by the way, and I can only hope they make her in 1:48 scale.
Just my 2 cents!!
Freddie, (Fjs3)