I would certainly agree that the ability to see the map in play for Frame 3 is the only way to be certain of the Allied abilities for Frame 3.
EDIT:10. Frame 4 -5 - the allies continue to expand their hold on sicily and airfields are now available on the island to support their invasion.
Closer reading of ALL of the Rules would indicate that there will not be Allied air bases on Sicily in Frame 3.
It will be interesting to see if the Axis effort of Frame 2 to thwart the Invasion is taken into account. Namely, a number of beachheads DESTROYED. A number of landed GVs DESTROYED. Cargo ships at anchor DESTROYED. Supply lines interrupted or DESTROYED.
EDIT:OTOH, if the Allies are given " a number of nearby locations that may be attacked by the Axis along with the invasion beachheads." It just gives us the opportunity we had to score some points before the bad guys can get to the island. The Frame 3 Commander just has more choices of what can be taken out quickly for the maximum of points.
Or alternately, historically stated:
It will be interesting to see if "the pump don't work 'cause the Vandals took the handle."--Subterranean Homesick Blues