John,
This is what Andy said about this topic back in mid July:
"K&C collectors can expect at least 6 or 7 sets of new Afrika Korps including (I hope) a new halftrack and an artillery piece with crew. Also look forward to a motorcycle cambo plus a couple of very unusual 4 figure sets.
On the 8th Army front a brand-new tank (top secret at the moment) and attacking British Infantry in classic Desert shorts and shirt order plus Indian Army machine gunners and engineers.
That’s all I can say just now but as usual these will be a few “extra” surprises."
Based upon that, I'm not sure exactly what we'll be getting although I do remember hearing/reading no M3 Grant.