I've seen a few pics from Nuremburg with a Russian Sherman but I can't find out whether it's a new tooling or not. Anyone know?

It's the Italieri M4A2 kit with their 76mm turret ...Nothing new about the kit ...

Rick

So what is the "most current" Sherman kit? Tamiya or otherwise.

Can't say I'm surprised. Still, I suppose they'll do a new Sherman in 1/35 one day.

The Most Current Sherman Kit would be DML's M4 Composite Firefly (Sherman 1c Firefly Hybrid).
There is nothing current about either Tamiyas or Italeris SHermans and this one is a good example.
It uses the turret and Hull lower from the old 70's era M4A1 76mm, a half modified Upper hull from 80's M4A3 76mm with an M4A2 engine deck from the 90's modification of the M4A3 75 to a pacific wading M4A2/3. Unfortuantely Italeri never gave you the rear plate and exhausts for an M4A2 (they provided Wading gear which covered this area). I wonder how thye will approach that deficiency in this kit.
SOme good features although long over shadowed:
Italeri were the first Shermans to offer wheels and idlers that were not hollow backed
Italeri Shermans were the first to offer raised weld beads.
Tamiya despite being 2010 still have open sponsons, trench welds and hollow roadwheels and idlers. Their Shermans are essentially minor cosmetic upgrades of the 1981 product. Their M4 has a serious accuracy issue in having an M4A4/A3 wide hood glacis BUT the turret is very good and offers a gun breech and guard plus turret radio a trend I'd like to see in the current crop of Shermans.
The Current Shermans are best sourced from Tasca and DML. My personal preference is for Tasca where subjects overlap as I find these far superior to any of the DML Shermans. That is not to say the DML are bad, most are excelllent but the Tasca ones are much better IMHO
Al