Yes, the U.S. can put those ships to very good use and open a new front in the Central Pacific. I noticed Tarawa was bombed today.
I don’t think there is a better web site on the Pacific War than Jon Parshall’s “Combined Fleet” site.
Here’s a link to his page on the naval battles of the Solomons Campaign. His conclusion is an excellent summary of what the IJN is going to look like in a few months.
http://combinedfleet.com/battles/Solomon_Islands_Campaign
And if you really want to see just how bad it was for the Japanese, look at his page on the production statistics between the United States and Japan.
http://www.combinedfleet.com/economic.htm