I liked the old 2 full size CVs and 4 Cruisers with destroyer escort suggestion.
I wouldn't mind seeing straight up amphibious groups too - let them get close inshore and spawn tanks and LVT2s onto the beach (something just made for those Sherman drivers to try). Without CV cover, they are probably easy meat, but for those that want to try some real CV / Combined Ops - it would fix a lot the problems we have with CV drivers bringing the group right up to the shore batteries.
Amphib group would be Cruisers and Destoyers primarily, but HT could add as a primary target either some kind of large freighter, or maybe that Iowa BB with 20 5" and 40 x 40mm guns to make everybody see what deadly ack is really like.
EagleDNY
$.02