I have more or less given up on this forum, because of poor moderation. But your humility,
@araz and others makes me feel guilty, so here it is:
LIFT a/c and JFT-B fulfill two different roles.
LIFT comes in after a pilot graduates from a prop a/c. It's primary role is to get pilots trained on fast jets, without the costs associated with them. That is its primary role, it's secondary role would be CAS, CAP etc
JFT-B's primary role will be as a Strike Aircraft, and secondary role as a training a/c for pilots transitioning to it.
The F16-B/D
(MLU'd) /F all are anything but trainers, but highly evolved EW, strike a/c's, but do function as trainers as well. So JFT-B will be evolving along these similar lines as well.
I believe an advanced loitering SOW is in the works for JFT