I highly doubt that biofuel catches on, the international market for these fuels will ultimately lead to bulldozing the rain forest, as that is the lowest cost "farm" on Earth. Liquefied natural gas is the biggest cost saver of the bunch, but the tanks become gigantic bombs, that I personally would not go near. If a ramper ran a cart into an external tank, the entire airport would likely be destroyed.
However, and here is the big issue, the price of Jet A will crater once any alternative technology takes hold, resulting in sticking with Jet A. We will see fully autonomous aircraft before any of those replace Kerosene.