"Currently, allies have to wait 24 hours to join a war. Ain't nobody got time fo dat! Let's make it 4."
See what other changes are coming in this link

EVE Online Dev Blog: Little Things From Super Friends!
community.eveonline.com
Team Super Friends has been working on some Little Things for Retribution 1.1. We decided to focus a bit on making the war experience better since there were a few things we knew we could do better. Now lets get to it!