Board Thread:Fleet's Prepared-ness/@comment-5728384-20180418020454/@comment-11700680-20180430013540

Get at least 7 DD Kai Ni, 2 CAV, Maya Kai Ni, 3 combat CA Kai Ni, 2 CLT, 2 CL Kai Ni, 4 FBB Kai Ni, 1 60+ AV, 4 60+ CV, and 2 60+ FAST CVL. That will work as a baseline for the ships you will need during events. Use the sortable tables on this page: http://kancolle.wikia.com/wiki/Ship_Maximum_Status to figure out which ships are worth leveling.

While missing information on new mechanics, equipment, and ships, this guide should still be helpful for basic preperation: http://kancolle.wikia.com/wiki/User_blog:Shinhwalee/Major_Event_Preparation_Guide_for_Admirals_(OUTDATED)