I would think that the finish of Shiptrax is when Airnav will be in the position to give its full resources to the new software not when it would be available.
They have mentioned Mlat is going to be part of it but whether it will or not you know as much as I do or even if the current box will be able to handle it or whether an add on would be needed,.
Saying anything else at this stage whould be pure guess work and conjecture and Airnav will not say anything to save giving the game away to other systems.
We will need to wait and see what what comes our way.
Alan