There is a 90 day trial license for new install FTDs. But if you have used the trial license already it will not be available to you.
It is in 90 day mode. "Usable cryptography types are currently restricted by the licensing status of the device". For IKE v2 only DES-SHA-SHA is available, I tried doing a simple VTI tunnel with this encryption between two FTDs locally managed but it won't negotiate. Kind of pointless.